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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.5"/> <title>ALSA project - the C library reference: Simple Mixer Interface</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/search.js"></script> <script type="text/javascript"> $(document).ready(function() { searchBox.OnSelectItem(0); }); </script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">ALSA project - the C library reference </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.5 --> <script type="text/javascript"> var searchBox = new SearchBox("searchBox", "search",false,'Search'); </script> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li><a href="examples.html"><span>Examples</span></a></li> <li> <div id="MSearchBox" class="MSearchBoxInactive"> <span class="left"> <img id="MSearchSelect" src="search/mag_sel.png" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return 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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__mixer__selem__regopt.html">snd_mixer_selem_regopt</a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a> Macros</h2></td></tr> <tr class="memitem:gae97a5b8fbc068632409e1459a9476222"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gae97a5b8fbc068632409e1459a9476222">snd_mixer_selem_id_alloca</a>(<a class="el" href="seq__event_8h.html#add9af9569af79ec26dd741fb226b38ba">ptr</a>)</td></tr> <tr class="memdesc:gae97a5b8fbc068632409e1459a9476222"><td class="mdescLeft"> </td><td class="mdescRight">allocate an invalid <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> using standard alloca <a href="#gae97a5b8fbc068632409e1459a9476222">More...</a><br/></td></tr> <tr class="separator:gae97a5b8fbc068632409e1459a9476222"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a> Typedefs</h2></td></tr> <tr class="memitem:gac0bfc2b9efcbc308df2daad92983e2ee"><td class="memItemLeft" align="right" valign="top">typedef struct _snd_mixer_selem_id </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a></td></tr> <tr class="separator:gac0bfc2b9efcbc308df2daad92983e2ee"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a> Enumerations</h2></td></tr> <tr class="memitem:gaf01a92f33cc46d0b3878d65afcc41b97"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> { <br/>   <a class="el" href="group___simple_mixer.html#ggaf01a92f33cc46d0b3878d65afcc41b97a91369fd97c7cb996647c1993136b70ff">SND_MIXER_SCHN_UNKNOWN</a> = -1, <a class="el" href="group___simple_mixer.html#ggaf01a92f33cc46d0b3878d65afcc41b97afabaaa694a14ab17e1c03ed0a4ff6f43">SND_MIXER_SCHN_FRONT_LEFT</a> = 0, <a class="el" href="group___simple_mixer.html#ggaf01a92f33cc46d0b3878d65afcc41b97ab9310897c48a0aa06c822d92970b77a7">SND_MIXER_SCHN_FRONT_RIGHT</a>, <a class="el" href="group___simple_mixer.html#ggaf01a92f33cc46d0b3878d65afcc41b97ad72538d298df9240b9b776f7019e9c2d">SND_MIXER_SCHN_REAR_LEFT</a>, <br/>   <a class="el" href="group___simple_mixer.html#ggaf01a92f33cc46d0b3878d65afcc41b97afa66c007bd5deda0b6acb7516c483c62">SND_MIXER_SCHN_REAR_RIGHT</a>, <a class="el" href="group___simple_mixer.html#ggaf01a92f33cc46d0b3878d65afcc41b97a796f68400623ee579ce3d0a913d7ffbd">SND_MIXER_SCHN_FRONT_CENTER</a>, <a class="el" href="group___simple_mixer.html#ggaf01a92f33cc46d0b3878d65afcc41b97ae8b2cde33cdb6ba8b7a2f58a69d37e19">SND_MIXER_SCHN_WOOFER</a>, <a class="el" href="group___simple_mixer.html#ggaf01a92f33cc46d0b3878d65afcc41b97aa50f3dbd34b82d2634c0dba82a85080d">SND_MIXER_SCHN_SIDE_LEFT</a>, <br/>   <a class="el" href="group___simple_mixer.html#ggaf01a92f33cc46d0b3878d65afcc41b97ae95813ea4f45d4fb8c3827adc7d36e7b">SND_MIXER_SCHN_SIDE_RIGHT</a>, <a class="el" href="group___simple_mixer.html#ggaf01a92f33cc46d0b3878d65afcc41b97a709e466b14161e3aba70717b2fc528bd">SND_MIXER_SCHN_REAR_CENTER</a>, <b>SND_MIXER_SCHN_LAST</b> = 31, <a class="el" href="group___simple_mixer.html#ggaf01a92f33cc46d0b3878d65afcc41b97a6f894eb8b9532977e29e99122e995833">SND_MIXER_SCHN_MONO</a> = SND_MIXER_SCHN_FRONT_LEFT <br/> }</td></tr> <tr class="separator:gaf01a92f33cc46d0b3878d65afcc41b97"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gab7031d53c3876396c9880631813979c2"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gab7031d53c3876396c9880631813979c2">snd_mixer_selem_regopt_abstract</a> { <a class="el" href="group___simple_mixer.html#ggab7031d53c3876396c9880631813979c2a807967c1a34b191d53eb65fe4a6f656c">SND_MIXER_SABSTRACT_NONE</a> = 0, <a class="el" href="group___simple_mixer.html#ggab7031d53c3876396c9880631813979c2a71c3a86bbb0514b4c5c488741dec000a">SND_MIXER_SABSTRACT_BASIC</a> }</td></tr> <tr class="separator:gab7031d53c3876396c9880631813979c2"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> Functions</h2></td></tr> <tr class="memitem:ga37ae8c6874d975efa83a9074a28113b9"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga37ae8c6874d975efa83a9074a28113b9">snd_mixer_selem_channel_name</a> (<a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel)</td></tr> <tr class="memdesc:ga37ae8c6874d975efa83a9074a28113b9"><td class="mdescLeft"> </td><td class="mdescRight">Return name of mixer simple element channel. <a href="#ga37ae8c6874d975efa83a9074a28113b9">More...</a><br/></td></tr> <tr class="separator:ga37ae8c6874d975efa83a9074a28113b9"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gadd686db0b7d2bba9a88112b732b147d0"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gadd686db0b7d2bba9a88112b732b147d0">snd_mixer_selem_register</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer, struct <a class="el" href="structsnd__mixer__selem__regopt.html">snd_mixer_selem_regopt</a> *options, <a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> **classp)</td></tr> <tr class="memdesc:gadd686db0b7d2bba9a88112b732b147d0"><td class="mdescLeft"> </td><td class="mdescRight">Register mixer simple element class. <a href="#gadd686db0b7d2bba9a88112b732b147d0">More...</a><br/></td></tr> <tr class="separator:gadd686db0b7d2bba9a88112b732b147d0"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga02aba43d5ae75392b6344c7f8f92fe72"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga02aba43d5ae75392b6344c7f8f92fe72">snd_mixer_selem_get_id</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *element, <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> *id)</td></tr> <tr class="memdesc:ga02aba43d5ae75392b6344c7f8f92fe72"><td class="mdescLeft"> </td><td class="mdescRight">Get mixer simple element identifier. <a href="#ga02aba43d5ae75392b6344c7f8f92fe72">More...</a><br/></td></tr> <tr class="separator:ga02aba43d5ae75392b6344c7f8f92fe72"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga51329fb3fea12d50209fcf8ebf542492"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga51329fb3fea12d50209fcf8ebf542492">snd_mixer_selem_get_name</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga51329fb3fea12d50209fcf8ebf542492"><td class="mdescLeft"> </td><td class="mdescRight">Get name part of mixer simple element identifier. <a href="#ga51329fb3fea12d50209fcf8ebf542492">More...</a><br/></td></tr> <tr class="separator:ga51329fb3fea12d50209fcf8ebf542492"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga11a14cd0d589033d49647d27e12b9cc1"><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga11a14cd0d589033d49647d27e12b9cc1">snd_mixer_selem_get_index</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga11a14cd0d589033d49647d27e12b9cc1"><td class="mdescLeft"> </td><td class="mdescRight">Get index part of mixer simple element identifier. <a href="#ga11a14cd0d589033d49647d27e12b9cc1">More...</a><br/></td></tr> <tr class="separator:ga11a14cd0d589033d49647d27e12b9cc1"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gad9b0c9a6d7956f95132aa42857d962cb"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gad9b0c9a6d7956f95132aa42857d962cb">snd_mixer_find_selem</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer, const <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> *id)</td></tr> <tr class="memdesc:gad9b0c9a6d7956f95132aa42857d962cb"><td class="mdescLeft"> </td><td class="mdescRight">Find a mixer simple element. <a href="#gad9b0c9a6d7956f95132aa42857d962cb">More...</a><br/></td></tr> <tr class="separator:gad9b0c9a6d7956f95132aa42857d962cb"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga41eb6c6d7a237dc617115ba4ba91ffbd"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga41eb6c6d7a237dc617115ba4ba91ffbd">snd_mixer_selem_is_active</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga41eb6c6d7a237dc617115ba4ba91ffbd"><td class="mdescLeft"> </td><td class="mdescRight">Get info about the active state of a mixer simple element. <a href="#ga41eb6c6d7a237dc617115ba4ba91ffbd">More...</a><br/></td></tr> <tr class="separator:ga41eb6c6d7a237dc617115ba4ba91ffbd"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gacdc9e474bb45ca6759a2f9ea878bc1a4"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gacdc9e474bb45ca6759a2f9ea878bc1a4">snd_mixer_selem_is_playback_mono</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:gacdc9e474bb45ca6759a2f9ea878bc1a4"><td class="mdescLeft"> </td><td class="mdescRight">Get info about channels of playback stream of a mixer simple element. <a href="#gacdc9e474bb45ca6759a2f9ea878bc1a4">More...</a><br/></td></tr> <tr class="separator:gacdc9e474bb45ca6759a2f9ea878bc1a4"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga621b34fc2c4f47a28fb9b34a3dd820e7"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga621b34fc2c4f47a28fb9b34a3dd820e7">snd_mixer_selem_has_playback_channel</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *obj, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel)</td></tr> <tr class="memdesc:ga621b34fc2c4f47a28fb9b34a3dd820e7"><td class="mdescLeft"> </td><td class="mdescRight">Get info about channels of playback stream of a mixer simple element. <a href="#ga621b34fc2c4f47a28fb9b34a3dd820e7">More...</a><br/></td></tr> <tr class="separator:ga621b34fc2c4f47a28fb9b34a3dd820e7"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gadc4c2179abd18d7c587cc199bb8e9273"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gadc4c2179abd18d7c587cc199bb8e9273">snd_mixer_selem_is_capture_mono</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:gadc4c2179abd18d7c587cc199bb8e9273"><td class="mdescLeft"> </td><td class="mdescRight">Get info about channels of capture stream of a mixer simple element. <a href="#gadc4c2179abd18d7c587cc199bb8e9273">More...</a><br/></td></tr> <tr class="separator:gadc4c2179abd18d7c587cc199bb8e9273"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gac05de257374bae60c03ba033344f811e"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gac05de257374bae60c03ba033344f811e">snd_mixer_selem_has_capture_channel</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *obj, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel)</td></tr> <tr class="memdesc:gac05de257374bae60c03ba033344f811e"><td class="mdescLeft"> </td><td class="mdescRight">Get info about channels of capture stream of a mixer simple element. <a href="#gac05de257374bae60c03ba033344f811e">More...</a><br/></td></tr> <tr class="separator:gac05de257374bae60c03ba033344f811e"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gae75b0133e7beba016589259b30cf8e7b"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gae75b0133e7beba016589259b30cf8e7b">snd_mixer_selem_get_capture_group</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:gae75b0133e7beba016589259b30cf8e7b"><td class="mdescLeft"> </td><td class="mdescRight">Return info about capture switch control of a mixer simple element. <a href="#gae75b0133e7beba016589259b30cf8e7b">More...</a><br/></td></tr> <tr class="separator:gae75b0133e7beba016589259b30cf8e7b"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga08c4099ef62508d5ae7f13bd6affd5a5"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga08c4099ef62508d5ae7f13bd6affd5a5">snd_mixer_selem_has_common_volume</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga08c4099ef62508d5ae7f13bd6affd5a5"><td class="mdescLeft"> </td><td class="mdescRight">Return true if mixer simple element has only one volume control for both playback and capture. <a href="#ga08c4099ef62508d5ae7f13bd6affd5a5">More...</a><br/></td></tr> <tr class="separator:ga08c4099ef62508d5ae7f13bd6affd5a5"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga17468934f36929ae2f7af4850f40f851"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga17468934f36929ae2f7af4850f40f851">snd_mixer_selem_has_playback_volume</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga17468934f36929ae2f7af4850f40f851"><td class="mdescLeft"> </td><td class="mdescRight">Return info about playback volume control of a mixer simple element. <a href="#ga17468934f36929ae2f7af4850f40f851">More...</a><br/></td></tr> <tr class="separator:ga17468934f36929ae2f7af4850f40f851"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gaf39321d4b7bb2efac3a3af357e42c6eb"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gaf39321d4b7bb2efac3a3af357e42c6eb">snd_mixer_selem_has_playback_volume_joined</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:gaf39321d4b7bb2efac3a3af357e42c6eb"><td class="mdescLeft"> </td><td class="mdescRight">Return info about playback volume control of a mixer simple element. <a href="#gaf39321d4b7bb2efac3a3af357e42c6eb">More...</a><br/></td></tr> <tr class="separator:gaf39321d4b7bb2efac3a3af357e42c6eb"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga095d73eab22ef19cabed8732ffc44a7b"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga095d73eab22ef19cabed8732ffc44a7b">snd_mixer_selem_has_capture_volume</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga095d73eab22ef19cabed8732ffc44a7b"><td class="mdescLeft"> </td><td class="mdescRight">Return info about capture volume control of a mixer simple element. <a href="#ga095d73eab22ef19cabed8732ffc44a7b">More...</a><br/></td></tr> <tr class="separator:ga095d73eab22ef19cabed8732ffc44a7b"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga1646edce83681e786da2f1a6befaf113"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga1646edce83681e786da2f1a6befaf113">snd_mixer_selem_has_capture_volume_joined</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga1646edce83681e786da2f1a6befaf113"><td class="mdescLeft"> </td><td class="mdescRight">Return info about capture volume control of a mixer simple element. <a href="#ga1646edce83681e786da2f1a6befaf113">More...</a><br/></td></tr> <tr class="separator:ga1646edce83681e786da2f1a6befaf113"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga468e0188282093c377776683bcea20d4"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga468e0188282093c377776683bcea20d4">snd_mixer_selem_has_common_switch</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga468e0188282093c377776683bcea20d4"><td class="mdescLeft"> </td><td class="mdescRight">Return true if mixer simple element has only one switch control for both playback and capture. <a href="#ga468e0188282093c377776683bcea20d4">More...</a><br/></td></tr> <tr class="separator:ga468e0188282093c377776683bcea20d4"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga4efd34d5ccb384e8db4291bd3aad0760"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga4efd34d5ccb384e8db4291bd3aad0760">snd_mixer_selem_has_playback_switch</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga4efd34d5ccb384e8db4291bd3aad0760"><td class="mdescLeft"> </td><td class="mdescRight">Return info about playback switch control existence of a mixer simple element. <a href="#ga4efd34d5ccb384e8db4291bd3aad0760">More...</a><br/></td></tr> <tr class="separator:ga4efd34d5ccb384e8db4291bd3aad0760"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga162fa35b3cc76e67c14482a2f6b734c1"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga162fa35b3cc76e67c14482a2f6b734c1">snd_mixer_selem_has_playback_switch_joined</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga162fa35b3cc76e67c14482a2f6b734c1"><td class="mdescLeft"> </td><td class="mdescRight">Return info about playback switch control of a mixer simple element. <a href="#ga162fa35b3cc76e67c14482a2f6b734c1">More...</a><br/></td></tr> <tr class="separator:ga162fa35b3cc76e67c14482a2f6b734c1"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga6761e23f215d3d048c729a22cfdd952a"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga6761e23f215d3d048c729a22cfdd952a">snd_mixer_selem_has_capture_switch</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga6761e23f215d3d048c729a22cfdd952a"><td class="mdescLeft"> </td><td class="mdescRight">Return info about capture switch control existence of a mixer simple element. <a href="#ga6761e23f215d3d048c729a22cfdd952a">More...</a><br/></td></tr> <tr class="separator:ga6761e23f215d3d048c729a22cfdd952a"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga14a6a278ef91593d3c6fc53007627d25"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga14a6a278ef91593d3c6fc53007627d25">snd_mixer_selem_has_capture_switch_joined</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga14a6a278ef91593d3c6fc53007627d25"><td class="mdescLeft"> </td><td class="mdescRight">Return info about capture switch control of a mixer simple element. <a href="#ga14a6a278ef91593d3c6fc53007627d25">More...</a><br/></td></tr> <tr class="separator:ga14a6a278ef91593d3c6fc53007627d25"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga1ad2e8afe6f5ad7857b0bdc70048d44d"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga1ad2e8afe6f5ad7857b0bdc70048d44d">snd_mixer_selem_has_capture_switch_exclusive</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga1ad2e8afe6f5ad7857b0bdc70048d44d"><td class="mdescLeft"> </td><td class="mdescRight">Return info about capture switch control of a mixer simple element. <a href="#ga1ad2e8afe6f5ad7857b0bdc70048d44d">More...</a><br/></td></tr> <tr class="separator:ga1ad2e8afe6f5ad7857b0bdc70048d44d"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gac8e2c7d0555f58ec790443da87ecbae3"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gac8e2c7d0555f58ec790443da87ecbae3">snd_mixer_selem_ask_playback_vol_dB</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long value, long *dBvalue)</td></tr> <tr class="memdesc:gac8e2c7d0555f58ec790443da87ecbae3"><td class="mdescLeft"> </td><td class="mdescRight">Return corresponding dB value to an integer playback volume for a mixer simple element. <a href="#gac8e2c7d0555f58ec790443da87ecbae3">More...</a><br/></td></tr> <tr class="separator:gac8e2c7d0555f58ec790443da87ecbae3"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga87dcbf4b28ba67c8a07cdd79231b9942"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga87dcbf4b28ba67c8a07cdd79231b9942">snd_mixer_selem_ask_capture_vol_dB</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long value, long *dBvalue)</td></tr> <tr class="memdesc:ga87dcbf4b28ba67c8a07cdd79231b9942"><td class="mdescLeft"> </td><td class="mdescRight">Return corresponding dB value to an integer capture volume for a mixer simple element. <a href="#ga87dcbf4b28ba67c8a07cdd79231b9942">More...</a><br/></td></tr> <tr class="separator:ga87dcbf4b28ba67c8a07cdd79231b9942"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga3bf17ce7cb933fa69973cb69ca079f13"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga3bf17ce7cb933fa69973cb69ca079f13">snd_mixer_selem_ask_playback_dB_vol</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long dBvalue, int dir, long *value)</td></tr> <tr class="memdesc:ga3bf17ce7cb933fa69973cb69ca079f13"><td class="mdescLeft"> </td><td class="mdescRight">Return corresponding integer playback volume for given dB value for a mixer simple element. <a href="#ga3bf17ce7cb933fa69973cb69ca079f13">More...</a><br/></td></tr> <tr class="separator:ga3bf17ce7cb933fa69973cb69ca079f13"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga40141aa00e0839bdfa8398b5aac1a0a6"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga40141aa00e0839bdfa8398b5aac1a0a6">snd_mixer_selem_ask_capture_dB_vol</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long dBvalue, int dir, long *value)</td></tr> <tr class="memdesc:ga40141aa00e0839bdfa8398b5aac1a0a6"><td class="mdescLeft"> </td><td class="mdescRight">Return corresponding integer capture volume for given dB value for a mixer simple element. <a href="#ga40141aa00e0839bdfa8398b5aac1a0a6">More...</a><br/></td></tr> <tr class="separator:ga40141aa00e0839bdfa8398b5aac1a0a6"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga12f6f4124bf45db95f965298c2f318bb"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga12f6f4124bf45db95f965298c2f318bb">snd_mixer_selem_get_playback_volume</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, long *value)</td></tr> <tr class="memdesc:ga12f6f4124bf45db95f965298c2f318bb"><td class="mdescLeft"> </td><td class="mdescRight">Return value of playback volume control of a mixer simple element. <a href="#ga12f6f4124bf45db95f965298c2f318bb">More...</a><br/></td></tr> <tr class="separator:ga12f6f4124bf45db95f965298c2f318bb"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga3b15557f590f136735a4abee96cf28fd"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga3b15557f590f136735a4abee96cf28fd">snd_mixer_selem_get_capture_volume</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, long *value)</td></tr> <tr class="memdesc:ga3b15557f590f136735a4abee96cf28fd"><td class="mdescLeft"> </td><td class="mdescRight">Return value of capture volume control of a mixer simple element. <a href="#ga3b15557f590f136735a4abee96cf28fd">More...</a><br/></td></tr> <tr class="separator:ga3b15557f590f136735a4abee96cf28fd"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga6b5799e7971688e1f2e9ccf977c8a887"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga6b5799e7971688e1f2e9ccf977c8a887">snd_mixer_selem_get_playback_dB</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, long *value)</td></tr> <tr class="memdesc:ga6b5799e7971688e1f2e9ccf977c8a887"><td class="mdescLeft"> </td><td class="mdescRight">Return value of playback volume in dB control of a mixer simple element. <a href="#ga6b5799e7971688e1f2e9ccf977c8a887">More...</a><br/></td></tr> <tr class="separator:ga6b5799e7971688e1f2e9ccf977c8a887"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga27bf2c4bd591bcf61b3fe20353bac8da"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga27bf2c4bd591bcf61b3fe20353bac8da">snd_mixer_selem_get_capture_dB</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, long *value)</td></tr> <tr class="memdesc:ga27bf2c4bd591bcf61b3fe20353bac8da"><td class="mdescLeft"> </td><td class="mdescRight">Return value of capture volume in dB control of a mixer simple element. <a href="#ga27bf2c4bd591bcf61b3fe20353bac8da">More...</a><br/></td></tr> <tr class="separator:ga27bf2c4bd591bcf61b3fe20353bac8da"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga55a4f32e711efe4ef09cf041d9fc27f0"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga55a4f32e711efe4ef09cf041d9fc27f0">snd_mixer_selem_get_playback_switch</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, int *value)</td></tr> <tr class="memdesc:ga55a4f32e711efe4ef09cf041d9fc27f0"><td class="mdescLeft"> </td><td class="mdescRight">Return value of playback switch control of a mixer simple element. <a href="#ga55a4f32e711efe4ef09cf041d9fc27f0">More...</a><br/></td></tr> <tr class="separator:ga55a4f32e711efe4ef09cf041d9fc27f0"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga49f4c3b98ef2353cdaa582e5bf3417a1"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga49f4c3b98ef2353cdaa582e5bf3417a1">snd_mixer_selem_get_capture_switch</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, int *value)</td></tr> <tr class="memdesc:ga49f4c3b98ef2353cdaa582e5bf3417a1"><td class="mdescLeft"> </td><td class="mdescRight">Return value of capture switch control of a mixer simple element. <a href="#ga49f4c3b98ef2353cdaa582e5bf3417a1">More...</a><br/></td></tr> <tr class="separator:ga49f4c3b98ef2353cdaa582e5bf3417a1"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga1e4556740beefc8bed40677a316e60ac"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga1e4556740beefc8bed40677a316e60ac">snd_mixer_selem_set_playback_volume</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, long value)</td></tr> <tr class="memdesc:ga1e4556740beefc8bed40677a316e60ac"><td class="mdescLeft"> </td><td class="mdescRight">Set value of playback volume control of a mixer simple element. <a href="#ga1e4556740beefc8bed40677a316e60ac">More...</a><br/></td></tr> <tr class="separator:ga1e4556740beefc8bed40677a316e60ac"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga8aa6b212e1e092e5d67ff11070a433ad"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga8aa6b212e1e092e5d67ff11070a433ad">snd_mixer_selem_set_capture_volume</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, long value)</td></tr> <tr class="memdesc:ga8aa6b212e1e092e5d67ff11070a433ad"><td class="mdescLeft"> </td><td class="mdescRight">Set value of capture volume control of a mixer simple element. <a href="#ga8aa6b212e1e092e5d67ff11070a433ad">More...</a><br/></td></tr> <tr class="separator:ga8aa6b212e1e092e5d67ff11070a433ad"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga8bfb52575e4bb06deb30799bc39c0768"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga8bfb52575e4bb06deb30799bc39c0768">snd_mixer_selem_set_playback_dB</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, long value, int dir)</td></tr> <tr class="memdesc:ga8bfb52575e4bb06deb30799bc39c0768"><td class="mdescLeft"> </td><td class="mdescRight">Set value in dB of playback volume control of a mixer simple element. <a href="#ga8bfb52575e4bb06deb30799bc39c0768">More...</a><br/></td></tr> <tr class="separator:ga8bfb52575e4bb06deb30799bc39c0768"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gac1af2ccb94c19e7f616338791707c2eb"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gac1af2ccb94c19e7f616338791707c2eb">snd_mixer_selem_set_capture_dB</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, long value, int dir)</td></tr> <tr class="memdesc:gac1af2ccb94c19e7f616338791707c2eb"><td class="mdescLeft"> </td><td class="mdescRight">Set value in dB of capture volume control of a mixer simple element. <a href="#gac1af2ccb94c19e7f616338791707c2eb">More...</a><br/></td></tr> <tr class="separator:gac1af2ccb94c19e7f616338791707c2eb"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga2567351a2a7a70e6dda81f5ccc38d04b"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga2567351a2a7a70e6dda81f5ccc38d04b">snd_mixer_selem_set_playback_volume_all</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long value)</td></tr> <tr class="memdesc:ga2567351a2a7a70e6dda81f5ccc38d04b"><td class="mdescLeft"> </td><td class="mdescRight">Set value of playback volume control for all channels of a mixer simple element. <a href="#ga2567351a2a7a70e6dda81f5ccc38d04b">More...</a><br/></td></tr> <tr class="separator:ga2567351a2a7a70e6dda81f5ccc38d04b"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga0e6e40f799c9a4042444a4e26194d451"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga0e6e40f799c9a4042444a4e26194d451">snd_mixer_selem_set_capture_volume_all</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long value)</td></tr> <tr class="memdesc:ga0e6e40f799c9a4042444a4e26194d451"><td class="mdescLeft"> </td><td class="mdescRight">Set value of capture volume control for all channels of a mixer simple element. <a href="#ga0e6e40f799c9a4042444a4e26194d451">More...</a><br/></td></tr> <tr class="separator:ga0e6e40f799c9a4042444a4e26194d451"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga555df8c54f170ebe7f389eb7a8d04cc9"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga555df8c54f170ebe7f389eb7a8d04cc9">snd_mixer_selem_set_playback_dB_all</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long value, int dir)</td></tr> <tr class="memdesc:ga555df8c54f170ebe7f389eb7a8d04cc9"><td class="mdescLeft"> </td><td class="mdescRight">Set value in dB of playback volume control for all channels of a mixer simple element. <a href="#ga555df8c54f170ebe7f389eb7a8d04cc9">More...</a><br/></td></tr> <tr class="separator:ga555df8c54f170ebe7f389eb7a8d04cc9"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga395321949ec6444ca4590f0ca3eac6b0"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga395321949ec6444ca4590f0ca3eac6b0">snd_mixer_selem_set_capture_dB_all</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long value, int dir)</td></tr> <tr class="memdesc:ga395321949ec6444ca4590f0ca3eac6b0"><td class="mdescLeft"> </td><td class="mdescRight">Set value in dB of capture volume control for all channels of a mixer simple element. <a href="#ga395321949ec6444ca4590f0ca3eac6b0">More...</a><br/></td></tr> <tr class="separator:ga395321949ec6444ca4590f0ca3eac6b0"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga1a9b7c48b94d8cbeffc6847f3b884dcc"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga1a9b7c48b94d8cbeffc6847f3b884dcc">snd_mixer_selem_set_playback_switch</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, int value)</td></tr> <tr class="memdesc:ga1a9b7c48b94d8cbeffc6847f3b884dcc"><td class="mdescLeft"> </td><td class="mdescRight">Set value of playback switch control of a mixer simple element. <a href="#ga1a9b7c48b94d8cbeffc6847f3b884dcc">More...</a><br/></td></tr> <tr class="separator:ga1a9b7c48b94d8cbeffc6847f3b884dcc"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga3de8f16807b23cdf9399f86a5eb3a353"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga3de8f16807b23cdf9399f86a5eb3a353">snd_mixer_selem_set_capture_switch</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, int value)</td></tr> <tr class="memdesc:ga3de8f16807b23cdf9399f86a5eb3a353"><td class="mdescLeft"> </td><td class="mdescRight">Set value of capture switch control of a mixer simple element. <a href="#ga3de8f16807b23cdf9399f86a5eb3a353">More...</a><br/></td></tr> <tr class="separator:ga3de8f16807b23cdf9399f86a5eb3a353"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gaa3e28640247b4eef389269b92f5b4a9d"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gaa3e28640247b4eef389269b92f5b4a9d">snd_mixer_selem_set_playback_switch_all</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, int value)</td></tr> <tr class="memdesc:gaa3e28640247b4eef389269b92f5b4a9d"><td class="mdescLeft"> </td><td class="mdescRight">Set value of playback switch control for all channels of a mixer simple element. <a href="#gaa3e28640247b4eef389269b92f5b4a9d">More...</a><br/></td></tr> <tr class="separator:gaa3e28640247b4eef389269b92f5b4a9d"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gad43024c7d21c38cde7b440cdc6a85c07"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gad43024c7d21c38cde7b440cdc6a85c07">snd_mixer_selem_set_capture_switch_all</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, int value)</td></tr> <tr class="memdesc:gad43024c7d21c38cde7b440cdc6a85c07"><td class="mdescLeft"> </td><td class="mdescRight">Set value of capture switch control for all channels of a mixer simple element. <a href="#gad43024c7d21c38cde7b440cdc6a85c07">More...</a><br/></td></tr> <tr class="separator:gad43024c7d21c38cde7b440cdc6a85c07"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga09557e90c11fbd37aeed30938338698b"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga09557e90c11fbd37aeed30938338698b">snd_mixer_selem_get_playback_volume_range</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long *min, long *max)</td></tr> <tr class="memdesc:ga09557e90c11fbd37aeed30938338698b"><td class="mdescLeft"> </td><td class="mdescRight">Get range for playback volume of a mixer simple element. <a href="#ga09557e90c11fbd37aeed30938338698b">More...</a><br/></td></tr> <tr class="separator:ga09557e90c11fbd37aeed30938338698b"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gad874cffabe541956b610858bcb38ba59"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gad874cffabe541956b610858bcb38ba59">snd_mixer_selem_get_playback_dB_range</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long *min, long *max)</td></tr> <tr class="memdesc:gad874cffabe541956b610858bcb38ba59"><td class="mdescLeft"> </td><td class="mdescRight">Get range in dB for playback volume of a mixer simple element. <a href="#gad874cffabe541956b610858bcb38ba59">More...</a><br/></td></tr> <tr class="separator:gad874cffabe541956b610858bcb38ba59"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gaf4b095372a07bcdf769d74fa73c803d5"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gaf4b095372a07bcdf769d74fa73c803d5">snd_mixer_selem_set_playback_volume_range</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long min, long max)</td></tr> <tr class="memdesc:gaf4b095372a07bcdf769d74fa73c803d5"><td class="mdescLeft"> </td><td class="mdescRight">Set range for playback volume of a mixer simple element. <a href="#gaf4b095372a07bcdf769d74fa73c803d5">More...</a><br/></td></tr> <tr class="separator:gaf4b095372a07bcdf769d74fa73c803d5"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga95e2624e7aaa7624e89121ce3f63b9dd"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga95e2624e7aaa7624e89121ce3f63b9dd">snd_mixer_selem_get_capture_volume_range</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long *min, long *max)</td></tr> <tr class="memdesc:ga95e2624e7aaa7624e89121ce3f63b9dd"><td class="mdescLeft"> </td><td class="mdescRight">Get range for capture volume of a mixer simple element. <a href="#ga95e2624e7aaa7624e89121ce3f63b9dd">More...</a><br/></td></tr> <tr class="separator:ga95e2624e7aaa7624e89121ce3f63b9dd"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga332241fcda7a9364b4d7830b592ba6a5"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga332241fcda7a9364b4d7830b592ba6a5">snd_mixer_selem_get_capture_dB_range</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long *min, long *max)</td></tr> <tr class="memdesc:ga332241fcda7a9364b4d7830b592ba6a5"><td class="mdescLeft"> </td><td class="mdescRight">Get range in dB for capture volume of a mixer simple element. <a href="#ga332241fcda7a9364b4d7830b592ba6a5">More...</a><br/></td></tr> <tr class="separator:ga332241fcda7a9364b4d7830b592ba6a5"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga608663233daecd6b373aba808f5fc427"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga608663233daecd6b373aba808f5fc427">snd_mixer_selem_set_capture_volume_range</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, long min, long max)</td></tr> <tr class="memdesc:ga608663233daecd6b373aba808f5fc427"><td class="mdescLeft"> </td><td class="mdescRight">Set range for capture volume of a mixer simple element. <a href="#ga608663233daecd6b373aba808f5fc427">More...</a><br/></td></tr> <tr class="separator:ga608663233daecd6b373aba808f5fc427"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gab367abc11dae3681978c2f831afd1e37"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gab367abc11dae3681978c2f831afd1e37">snd_mixer_selem_is_enumerated</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:gab367abc11dae3681978c2f831afd1e37"><td class="mdescLeft"> </td><td class="mdescRight">Return true if mixer simple element is an enumerated control. <a href="#gab367abc11dae3681978c2f831afd1e37">More...</a><br/></td></tr> <tr class="separator:gab367abc11dae3681978c2f831afd1e37"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gaed68ad405d2c2e9447e2fa1d4f5d1107"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gaed68ad405d2c2e9447e2fa1d4f5d1107">snd_mixer_selem_is_enum_playback</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:gaed68ad405d2c2e9447e2fa1d4f5d1107"><td class="mdescLeft"> </td><td class="mdescRight">Return true if mixer simple enumerated element belongs to the playback direction. <a href="#gaed68ad405d2c2e9447e2fa1d4f5d1107">More...</a><br/></td></tr> <tr class="separator:gaed68ad405d2c2e9447e2fa1d4f5d1107"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga90c5c5c0428fd0d6722c5a84348a39b0"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga90c5c5c0428fd0d6722c5a84348a39b0">snd_mixer_selem_is_enum_capture</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:ga90c5c5c0428fd0d6722c5a84348a39b0"><td class="mdescLeft"> </td><td class="mdescRight">Return true if mixer simple enumerated element belongs to the capture direction. <a href="#ga90c5c5c0428fd0d6722c5a84348a39b0">More...</a><br/></td></tr> <tr class="separator:ga90c5c5c0428fd0d6722c5a84348a39b0"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gab803bca4a9c322e1efe87950b62431b3"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gab803bca4a9c322e1efe87950b62431b3">snd_mixer_selem_get_enum_items</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr> <tr class="memdesc:gab803bca4a9c322e1efe87950b62431b3"><td class="mdescLeft"> </td><td class="mdescRight">Return the number of enumerated items of the given mixer simple element. <a href="#gab803bca4a9c322e1efe87950b62431b3">More...</a><br/></td></tr> <tr class="separator:gab803bca4a9c322e1efe87950b62431b3"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gacbae7ca76dc02dd172c80f8f704dd8c9"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gacbae7ca76dc02dd172c80f8f704dd8c9">snd_mixer_selem_get_enum_item_name</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, unsigned int idx, size_t maxlen, char *str)</td></tr> <tr class="memdesc:gacbae7ca76dc02dd172c80f8f704dd8c9"><td class="mdescLeft"> </td><td class="mdescRight">get the enumerated item string for the given mixer simple element <a href="#gacbae7ca76dc02dd172c80f8f704dd8c9">More...</a><br/></td></tr> <tr class="separator:gacbae7ca76dc02dd172c80f8f704dd8c9"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga6679dc52033e29b88da32f5bbd45f205"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga6679dc52033e29b88da32f5bbd45f205">snd_mixer_selem_get_enum_item</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, unsigned int *idxp)</td></tr> <tr class="memdesc:ga6679dc52033e29b88da32f5bbd45f205"><td class="mdescLeft"> </td><td class="mdescRight">get the current selected enumerated item for the given mixer simple element <a href="#ga6679dc52033e29b88da32f5bbd45f205">More...</a><br/></td></tr> <tr class="separator:ga6679dc52033e29b88da32f5bbd45f205"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gadcba6291c0382676ee442311c0ff1a8f"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gadcba6291c0382676ee442311c0ff1a8f">snd_mixer_selem_set_enum_item</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> channel, unsigned int idx)</td></tr> <tr class="memdesc:gadcba6291c0382676ee442311c0ff1a8f"><td class="mdescLeft"> </td><td class="mdescRight">set the current selected enumerated item for the given mixer simple element <a href="#gadcba6291c0382676ee442311c0ff1a8f">More...</a><br/></td></tr> <tr class="separator:gadcba6291c0382676ee442311c0ff1a8f"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga29705a6b18fe910d2b7aeb98531d5056"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga29705a6b18fe910d2b7aeb98531d5056">snd_mixer_selem_id_sizeof</a> (void)</td></tr> <tr class="memdesc:ga29705a6b18fe910d2b7aeb98531d5056"><td class="mdescLeft"> </td><td class="mdescRight">get size of <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> <a href="#ga29705a6b18fe910d2b7aeb98531d5056">More...</a><br/></td></tr> <tr class="separator:ga29705a6b18fe910d2b7aeb98531d5056"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gac48d80bc60d03959c43a3ec6caca8498"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gac48d80bc60d03959c43a3ec6caca8498">snd_mixer_selem_id_malloc</a> (<a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> **<a class="el" href="seq__event_8h.html#add9af9569af79ec26dd741fb226b38ba">ptr</a>)</td></tr> <tr class="memdesc:gac48d80bc60d03959c43a3ec6caca8498"><td class="mdescLeft"> </td><td class="mdescRight">allocate an invalid <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> using standard malloc <a href="#gac48d80bc60d03959c43a3ec6caca8498">More...</a><br/></td></tr> <tr class="separator:gac48d80bc60d03959c43a3ec6caca8498"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga2a6f790706e3ed64e1fb0f61177d13c5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga2a6f790706e3ed64e1fb0f61177d13c5">snd_mixer_selem_id_free</a> (<a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> *obj)</td></tr> <tr class="memdesc:ga2a6f790706e3ed64e1fb0f61177d13c5"><td class="mdescLeft"> </td><td class="mdescRight">frees a previously allocated <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> <a href="#ga2a6f790706e3ed64e1fb0f61177d13c5">More...</a><br/></td></tr> <tr class="separator:ga2a6f790706e3ed64e1fb0f61177d13c5"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga089d6e51b1b92fb51ff2cb771071a169"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga089d6e51b1b92fb51ff2cb771071a169">snd_mixer_selem_id_copy</a> (<a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> *dst, const <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> *src)</td></tr> <tr class="memdesc:ga089d6e51b1b92fb51ff2cb771071a169"><td class="mdescLeft"> </td><td class="mdescRight">copy one <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> to another <a href="#ga089d6e51b1b92fb51ff2cb771071a169">More...</a><br/></td></tr> <tr class="separator:ga089d6e51b1b92fb51ff2cb771071a169"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gae54797dd9e4382d67718899047fa1087"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gae54797dd9e4382d67718899047fa1087">snd_mixer_selem_id_get_name</a> (const <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> *obj)</td></tr> <tr class="memdesc:gae54797dd9e4382d67718899047fa1087"><td class="mdescLeft"> </td><td class="mdescRight">Get name part of a mixer simple element identifier. <a href="#gae54797dd9e4382d67718899047fa1087">More...</a><br/></td></tr> <tr class="separator:gae54797dd9e4382d67718899047fa1087"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gabe5105469fa31b85a52253e709733638"><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gabe5105469fa31b85a52253e709733638">snd_mixer_selem_id_get_index</a> (const <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> *obj)</td></tr> <tr class="memdesc:gabe5105469fa31b85a52253e709733638"><td class="mdescLeft"> </td><td class="mdescRight">Get index part of a mixer simple element identifier. <a href="#gabe5105469fa31b85a52253e709733638">More...</a><br/></td></tr> <tr class="separator:gabe5105469fa31b85a52253e709733638"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gad127341c44087525e1c715044d7a3919"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#gad127341c44087525e1c715044d7a3919">snd_mixer_selem_id_set_name</a> (<a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> *obj, const char *val)</td></tr> <tr class="memdesc:gad127341c44087525e1c715044d7a3919"><td class="mdescLeft"> </td><td class="mdescRight">Set name part of a mixer simple element identifier. <a href="#gad127341c44087525e1c715044d7a3919">More...</a><br/></td></tr> <tr class="separator:gad127341c44087525e1c715044d7a3919"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga02bf0b9758ed4146eec38cd964b7621d"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___simple_mixer.html#ga02bf0b9758ed4146eec38cd964b7621d">snd_mixer_selem_id_set_index</a> (<a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> *obj, unsigned int val)</td></tr> <tr class="memdesc:ga02bf0b9758ed4146eec38cd964b7621d"><td class="mdescLeft"> </td><td class="mdescRight">Set index part of a mixer simple element identifier. <a href="#ga02bf0b9758ed4146eec38cd964b7621d">More...</a><br/></td></tr> <tr class="separator:ga02bf0b9758ed4146eec38cd964b7621d"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <p>The simple mixer interface. </p> <h2 class="groupheader">Macro Definition Documentation</h2> <a class="anchor" id="gae97a5b8fbc068632409e1459a9476222"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">#define snd_mixer_selem_id_alloca</td> <td>(</td> <td class="paramtype"> </td> <td class="paramname"><a class="el" href="seq__event_8h.html#add9af9569af79ec26dd741fb226b38ba">ptr</a></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>allocate an invalid <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> using standard alloca </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">ptr</td><td>returned pointer </td></tr> </table> </dd> </dl> </div> </div> <h2 class="groupheader">Typedef Documentation</h2> <a class="anchor" id="gac0bfc2b9efcbc308df2daad92983e2ee"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">typedef struct _snd_mixer_selem_id <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a></td> </tr> </table> </div><div class="memdoc"> <p>Mixer simple element identifier </p> </div> </div> <h2 class="groupheader">Enumeration Type Documentation</h2> <a class="anchor" id="gaf01a92f33cc46d0b3878d65afcc41b97"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">enum <a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a></td> </tr> </table> </div><div class="memdoc"> <p>Mixer simple element channel identifier </p> <table class="fieldtable"> <tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="ggaf01a92f33cc46d0b3878d65afcc41b97a91369fd97c7cb996647c1993136b70ff"></a>SND_MIXER_SCHN_UNKNOWN</em> </td><td class="fielddoc"> <p>Unknown </p> </td></tr> <tr><td class="fieldname"><em><a class="anchor" id="ggaf01a92f33cc46d0b3878d65afcc41b97afabaaa694a14ab17e1c03ed0a4ff6f43"></a>SND_MIXER_SCHN_FRONT_LEFT</em> </td><td class="fielddoc"> <p>Front left </p> </td></tr> <tr><td class="fieldname"><em><a class="anchor" id="ggaf01a92f33cc46d0b3878d65afcc41b97ab9310897c48a0aa06c822d92970b77a7"></a>SND_MIXER_SCHN_FRONT_RIGHT</em> </td><td class="fielddoc"> <p>Front right </p> </td></tr> <tr><td class="fieldname"><em><a class="anchor" id="ggaf01a92f33cc46d0b3878d65afcc41b97ad72538d298df9240b9b776f7019e9c2d"></a>SND_MIXER_SCHN_REAR_LEFT</em> </td><td class="fielddoc"> <p>Rear left </p> </td></tr> <tr><td class="fieldname"><em><a class="anchor" id="ggaf01a92f33cc46d0b3878d65afcc41b97afa66c007bd5deda0b6acb7516c483c62"></a>SND_MIXER_SCHN_REAR_RIGHT</em> </td><td class="fielddoc"> <p>Rear right </p> </td></tr> <tr><td class="fieldname"><em><a class="anchor" id="ggaf01a92f33cc46d0b3878d65afcc41b97a796f68400623ee579ce3d0a913d7ffbd"></a>SND_MIXER_SCHN_FRONT_CENTER</em> </td><td class="fielddoc"> <p>Front center </p> </td></tr> <tr><td class="fieldname"><em><a class="anchor" id="ggaf01a92f33cc46d0b3878d65afcc41b97ae8b2cde33cdb6ba8b7a2f58a69d37e19"></a>SND_MIXER_SCHN_WOOFER</em> </td><td class="fielddoc"> <p>Woofer </p> </td></tr> <tr><td class="fieldname"><em><a class="anchor" id="ggaf01a92f33cc46d0b3878d65afcc41b97aa50f3dbd34b82d2634c0dba82a85080d"></a>SND_MIXER_SCHN_SIDE_LEFT</em> </td><td class="fielddoc"> <p>Side Left </p> </td></tr> <tr><td class="fieldname"><em><a class="anchor" id="ggaf01a92f33cc46d0b3878d65afcc41b97ae95813ea4f45d4fb8c3827adc7d36e7b"></a>SND_MIXER_SCHN_SIDE_RIGHT</em> </td><td class="fielddoc"> <p>Side Right </p> </td></tr> <tr><td class="fieldname"><em><a class="anchor" id="ggaf01a92f33cc46d0b3878d65afcc41b97a709e466b14161e3aba70717b2fc528bd"></a>SND_MIXER_SCHN_REAR_CENTER</em> </td><td class="fielddoc"> <p>Rear Center </p> </td></tr> <tr><td class="fieldname"><em><a class="anchor" id="ggaf01a92f33cc46d0b3878d65afcc41b97a6f894eb8b9532977e29e99122e995833"></a>SND_MIXER_SCHN_MONO</em> </td><td class="fielddoc"> <p>Mono (Front left alias) </p> </td></tr> </table> </div> </div> <a class="anchor" id="gab7031d53c3876396c9880631813979c2"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">enum <a class="el" href="group___simple_mixer.html#gab7031d53c3876396c9880631813979c2">snd_mixer_selem_regopt_abstract</a></td> </tr> </table> </div><div class="memdoc"> <p>Mixer simple element - register options - abstraction level </p> <table class="fieldtable"> <tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="ggab7031d53c3876396c9880631813979c2a807967c1a34b191d53eb65fe4a6f656c"></a>SND_MIXER_SABSTRACT_NONE</em> </td><td class="fielddoc"> <p>no abstraction - try use all universal controls from driver </p> </td></tr> <tr><td class="fieldname"><em><a class="anchor" id="ggab7031d53c3876396c9880631813979c2a71c3a86bbb0514b4c5c488741dec000a"></a>SND_MIXER_SABSTRACT_BASIC</em> </td><td class="fielddoc"> <p>basic abstraction - Master,PCM,CD,Aux,Record-Gain etc. </p> </td></tr> </table> </div> </div> <h2 class="groupheader">Function Documentation</h2> <a class="anchor" id="gad9b0c9a6d7956f95132aa42857d962cb"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a>* snd_mixer_find_selem </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> * </td> <td class="paramname"><em>mixer</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> * </td> <td class="paramname"><em>id</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Find a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">mixer</td><td>Mixer handle </td></tr> <tr><td class="paramname">id</td><td>Mixer simple element identifier </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>mixer simple element handle or NULL if not found </dd></dl> </div> </div> <a class="anchor" id="ga40141aa00e0839bdfa8398b5aac1a0a6"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_ask_capture_dB_vol </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>dBvalue</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>dir</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return corresponding integer capture volume for given dB value for a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">dBvalue</td><td>dB value to be converted to integer range </td></tr> <tr><td class="paramname">value</td><td>pointer to returned integer value </td></tr> <tr><td class="paramname">dir</td><td>rounding mode - rounds up if dir > 0, otherwise rounds down </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga87dcbf4b28ba67c8a07cdd79231b9942"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_ask_capture_vol_dB </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>value</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>dBvalue</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return corresponding dB value to an integer capture volume for a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">value</td><td>value to be converted to dB range </td></tr> <tr><td class="paramname">dBvalue</td><td>pointer to returned dB value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga3bf17ce7cb933fa69973cb69ca079f13"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_ask_playback_dB_vol </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>dBvalue</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>dir</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return corresponding integer playback volume for given dB value for a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">value</td><td>value to be converted to dB range </td></tr> <tr><td class="paramname">dir</td><td>rounding mode - rounds up if dir > 0, otherwise rounds down </td></tr> <tr><td class="paramname">dBvalue</td><td>pointer to returned dB value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="gac8e2c7d0555f58ec790443da87ecbae3"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_ask_playback_vol_dB </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>value</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>dBvalue</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return corresponding dB value to an integer playback volume for a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">value</td><td>value to be converted to dB range </td></tr> <tr><td class="paramname">dBvalue</td><td>pointer to returned dB value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga37ae8c6874d975efa83a9074a28113b9"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">const char* snd_mixer_selem_channel_name </td> <td>(</td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return name of mixer simple element channel. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>channel name </dd></dl> </div> </div> <a class="anchor" id="ga27bf2c4bd591bcf61b3fe20353bac8da"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_capture_dB </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return value of capture volume in dB control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">value</td><td>pointer to returned value (dB * 100) </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga332241fcda7a9364b4d7830b592ba6a5"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_capture_dB_range </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>min</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>max</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Get range in dB for capture volume of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">min</td><td>Pointer to returned minimum (dB * 100) </td></tr> <tr><td class="paramname">max</td><td>Pointer to returned maximum (dB * 100) </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="gae75b0133e7beba016589259b30cf8e7b"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_capture_group </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return info about capture switch control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>group for switch exclusivity (see <a class="el" href="group___simple_mixer.html#ga1ad2e8afe6f5ad7857b0bdc70048d44d" title="Return info about capture switch control of a mixer simple element. ">snd_mixer_selem_has_capture_switch_exclusive</a>) </dd></dl> </div> </div> <a class="anchor" id="ga49f4c3b98ef2353cdaa582e5bf3417a1"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_capture_switch </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int * </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return value of capture switch control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">value</td><td>pointer to returned value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga3b15557f590f136735a4abee96cf28fd"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_capture_volume </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return value of capture volume control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">value</td><td>pointer to returned value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga95e2624e7aaa7624e89121ce3f63b9dd"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_capture_volume_range </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>min</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>max</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Get range for capture volume of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">min</td><td>Pointer to returned minimum </td></tr> <tr><td class="paramname">max</td><td>Pointer to returned maximum </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="ga6679dc52033e29b88da32f5bbd45f205"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_enum_item </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">unsigned int * </td> <td class="paramname"><em>itemp</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>get the current selected enumerated item for the given mixer simple element </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">itemp</td><td>the pointer to store the index of the enumerated item </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if successful, otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="gacbae7ca76dc02dd172c80f8f704dd8c9"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_enum_item_name </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">unsigned int </td> <td class="paramname"><em>item</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">size_t </td> <td class="paramname"><em>maxlen</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">char * </td> <td class="paramname"><em>buf</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>get the enumerated item string for the given mixer simple element </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">item</td><td>the index of the enumerated item to query </td></tr> <tr><td class="paramname">maxlen</td><td>the maximal length to be stored </td></tr> <tr><td class="paramname">buf</td><td>the buffer to store the name string </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if successful, otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="gab803bca4a9c322e1efe87950b62431b3"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_enum_items </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return the number of enumerated items of the given mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>the number of enumerated items, otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga02aba43d5ae75392b6344c7f8f92fe72"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void snd_mixer_selem_get_id </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> * </td> <td class="paramname"><em>id</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Get mixer simple element identifier. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">id</td><td>returned mixer simple element identifier </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="ga11a14cd0d589033d49647d27e12b9cc1"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">unsigned int snd_mixer_selem_get_index </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Get index part of mixer simple element identifier. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>index part of simple element identifier </dd></dl> </div> </div> <a class="anchor" id="ga51329fb3fea12d50209fcf8ebf542492"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">const char* snd_mixer_selem_get_name </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Get name part of mixer simple element identifier. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>name part of simple element identifier </dd></dl> </div> </div> <a class="anchor" id="ga6b5799e7971688e1f2e9ccf977c8a887"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_playback_dB </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return value of playback volume in dB control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">value</td><td>pointer to returned value (dB * 100) </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="gad874cffabe541956b610858bcb38ba59"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_playback_dB_range </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>min</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>max</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Get range in dB for playback volume of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">min</td><td>Pointer to returned minimum (dB * 100) </td></tr> <tr><td class="paramname">max</td><td>Pointer to returned maximum (dB * 100) </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="ga55a4f32e711efe4ef09cf041d9fc27f0"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_playback_switch </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int * </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return value of playback switch control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">value</td><td>pointer to returned value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga12f6f4124bf45db95f965298c2f318bb"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_playback_volume </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return value of playback volume control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">value</td><td>pointer to returned value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga09557e90c11fbd37aeed30938338698b"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_get_playback_volume_range </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>min</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long * </td> <td class="paramname"><em>max</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Get range for playback volume of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">min</td><td>Pointer to returned minimum </td></tr> <tr><td class="paramname">max</td><td>Pointer to returned maximum </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="gac05de257374bae60c03ba033344f811e"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_has_capture_channel </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Get info about channels of capture stream of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>Mixer simple element channel identifier </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if channel is not present, 1 if present </dd></dl> </div> </div> <a class="anchor" id="ga6761e23f215d3d048c729a22cfdd952a"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_has_capture_switch </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return info about capture switch control existence of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if no control is present, 1 if it's present </dd></dl> </div> </div> <a class="anchor" id="ga1ad2e8afe6f5ad7857b0bdc70048d44d"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_has_capture_switch_exclusive </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return info about capture switch control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if control is separated per element, 1 if control acts on other elements too (i.e. only one active at a time inside a group) </dd></dl> </div> </div> <a class="anchor" id="ga14a6a278ef91593d3c6fc53007627d25"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_has_capture_switch_joined </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return info about capture switch control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if control is separated per channel, 1 if control acts on all channels together </dd></dl> </div> </div> <a class="anchor" id="ga095d73eab22ef19cabed8732ffc44a7b"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_has_capture_volume </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return info about capture volume control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if no control is present, 1 if it's present </dd></dl> </div> </div> <a class="anchor" id="ga1646edce83681e786da2f1a6befaf113"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_has_capture_volume_joined </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return info about capture volume control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if control is separated per channel, 1 if control acts on all channels together </dd></dl> </div> </div> <a class="anchor" id="ga468e0188282093c377776683bcea20d4"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_has_common_switch </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return true if mixer simple element has only one switch control for both playback and capture. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 separated control, 1 common control </dd></dl> </div> </div> <a class="anchor" id="ga08c4099ef62508d5ae7f13bd6affd5a5"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_has_common_volume </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return true if mixer simple element has only one volume control for both playback and capture. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 separated control, 1 common control </dd></dl> </div> </div> <a class="anchor" id="ga621b34fc2c4f47a28fb9b34a3dd820e7"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_has_playback_channel </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Get info about channels of playback stream of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>Mixer simple element channel identifier </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if channel is not present, 1 if present </dd></dl> </div> </div> <a class="anchor" id="ga4efd34d5ccb384e8db4291bd3aad0760"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_has_playback_switch </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return info about playback switch control existence of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if no control is present, 1 if it's present </dd></dl> </div> </div> <a class="anchor" id="ga162fa35b3cc76e67c14482a2f6b734c1"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_has_playback_switch_joined </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return info about playback switch control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if control is separated per channel, 1 if control acts on all channels together </dd></dl> </div> </div> <a class="anchor" id="ga17468934f36929ae2f7af4850f40f851"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_has_playback_volume </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return info about playback volume control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if no control is present, 1 if it's present </dd></dl> </div> </div> <a class="anchor" id="gaf39321d4b7bb2efac3a3af357e42c6eb"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_has_playback_volume_joined </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return info about playback volume control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if control is separated per channel, 1 if control acts on all channels together </dd></dl> </div> </div> <a class="anchor" id="ga089d6e51b1b92fb51ff2cb771071a169"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void snd_mixer_selem_id_copy </td> <td>(</td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> * </td> <td class="paramname"><em>dst</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> * </td> <td class="paramname"><em>src</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>copy one <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> to another </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">dst</td><td>pointer to destination </td></tr> <tr><td class="paramname">src</td><td>pointer to source </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="ga2a6f790706e3ed64e1fb0f61177d13c5"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void snd_mixer_selem_id_free </td> <td>(</td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> * </td> <td class="paramname"><em>obj</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>frees a previously allocated <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">obj</td><td>pointer to object to free </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="gabe5105469fa31b85a52253e709733638"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">unsigned int snd_mixer_selem_id_get_index </td> <td>(</td> <td class="paramtype">const <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> * </td> <td class="paramname"><em>obj</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Get index part of a mixer simple element identifier. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">obj</td><td>Mixer simple element identifier </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>index part </dd></dl> </div> </div> <a class="anchor" id="gae54797dd9e4382d67718899047fa1087"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">const char* snd_mixer_selem_id_get_name </td> <td>(</td> <td class="paramtype">const <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> * </td> <td class="paramname"><em>obj</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Get name part of a mixer simple element identifier. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">obj</td><td>Mixer simple element identifier </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>name part </dd></dl> </div> </div> <a class="anchor" id="gac48d80bc60d03959c43a3ec6caca8498"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_id_malloc </td> <td>(</td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> ** </td> <td class="paramname"><em>ptr</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>allocate an invalid <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> using standard malloc </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">ptr</td><td>returned pointer </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise negative error code </dd></dl> </div> </div> <a class="anchor" id="ga02bf0b9758ed4146eec38cd964b7621d"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void snd_mixer_selem_id_set_index </td> <td>(</td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> * </td> <td class="paramname"><em>obj</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">unsigned int </td> <td class="paramname"><em>val</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set index part of a mixer simple element identifier. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">obj</td><td>Mixer simple element identifier </td></tr> <tr><td class="paramname">val</td><td>index part </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="gad127341c44087525e1c715044d7a3919"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void snd_mixer_selem_id_set_name </td> <td>(</td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> * </td> <td class="paramname"><em>obj</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const char * </td> <td class="paramname"><em>val</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set name part of a mixer simple element identifier. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">obj</td><td>Mixer simple element identifier </td></tr> <tr><td class="paramname">val</td><td>name part </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="ga29705a6b18fe910d2b7aeb98531d5056"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">size_t snd_mixer_selem_id_sizeof </td> <td>(</td> <td class="paramtype">void </td> <td class="paramname"></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>get size of <a class="el" href="group___simple_mixer.html#gac0bfc2b9efcbc308df2daad92983e2ee">snd_mixer_selem_id_t</a> </p> <dl class="section return"><dt>Returns</dt><dd>size in bytes </dd></dl> </div> </div> <a class="anchor" id="ga41eb6c6d7a237dc617115ba4ba91ffbd"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_is_active </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Get info about the active state of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if not active, 1 if active </dd></dl> </div> </div> <a class="anchor" id="gadc4c2179abd18d7c587cc199bb8e9273"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_is_capture_mono </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Get info about channels of capture stream of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if not mono, 1 if mono </dd></dl> </div> </div> <a class="anchor" id="ga90c5c5c0428fd0d6722c5a84348a39b0"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_is_enum_capture </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return true if mixer simple enumerated element belongs to the capture direction. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 no capture direction, 1 capture direction </dd></dl> </div> </div> <a class="anchor" id="gaed68ad405d2c2e9447e2fa1d4f5d1107"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_is_enum_playback </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return true if mixer simple enumerated element belongs to the playback direction. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 no playback direction, 1 playback direction </dd></dl> </div> </div> <a class="anchor" id="gab367abc11dae3681978c2f831afd1e37"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_is_enumerated </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return true if mixer simple element is an enumerated control. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 normal volume/switch control, 1 enumerated control </dd></dl> </div> </div> <a class="anchor" id="gacdc9e474bb45ca6759a2f9ea878bc1a4"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_is_playback_mono </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Get info about channels of playback stream of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if not mono, 1 if mono </dd></dl> </div> </div> <a class="anchor" id="gadd686db0b7d2bba9a88112b732b147d0"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_register </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> * </td> <td class="paramname"><em>mixer</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">struct <a class="el" href="structsnd__mixer__selem__regopt.html">snd_mixer_selem_regopt</a> * </td> <td class="paramname"><em>options</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> ** </td> <td class="paramname"><em>classp</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Register mixer simple element class. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">mixer</td><td>Mixer handle </td></tr> <tr><td class="paramname">options</td><td>Options container </td></tr> <tr><td class="paramname">classp</td><td>Pointer to returned mixer simple element class handle (or NULL) </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="gac1af2ccb94c19e7f616338791707c2eb"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_capture_dB </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>value</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>dir</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set value in dB of capture volume control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">value</td><td>control value in dB * 100 </td></tr> <tr><td class="paramname">dir</td><td>rounding mode - rounds up if dir > 0, otherwise rounds down </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga395321949ec6444ca4590f0ca3eac6b0"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_capture_dB_all </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>value</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>dir</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set value in dB of capture volume control for all channels of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">value</td><td>control value in dB * 100 </td></tr> <tr><td class="paramname">dir</td><td>rounding mode - rounds up if dir > 0, otherwise rounds down </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga3de8f16807b23cdf9399f86a5eb3a353"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_capture_switch </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set value of capture switch control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">value</td><td>control value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="gad43024c7d21c38cde7b440cdc6a85c07"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_capture_switch_all </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set value of capture switch control for all channels of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">value</td><td>control value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga8aa6b212e1e092e5d67ff11070a433ad"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_capture_volume </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set value of capture volume control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">value</td><td>control value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga0e6e40f799c9a4042444a4e26194d451"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_capture_volume_all </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set value of capture volume control for all channels of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">value</td><td>control value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga608663233daecd6b373aba808f5fc427"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_capture_volume_range </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>min</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>max</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set range for capture volume of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">min</td><td>minimum volume value </td></tr> <tr><td class="paramname">max</td><td>maximum volume value </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="gadcba6291c0382676ee442311c0ff1a8f"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_enum_item </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">unsigned int </td> <td class="paramname"><em>item</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>set the current selected enumerated item for the given mixer simple element </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">item</td><td>the enumerated item index </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 if successful, otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga8bfb52575e4bb06deb30799bc39c0768"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_playback_dB </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>value</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>dir</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set value in dB of playback volume control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">value</td><td>control value in dB * 100 </td></tr> <tr><td class="paramname">dir</td><td>rounding mode - rounds up if dir > 0, otherwise rounds down </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga555df8c54f170ebe7f389eb7a8d04cc9"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_playback_dB_all </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>value</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>dir</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set value in dB of playback volume control for all channels of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">value</td><td>control value in dB * 100 </td></tr> <tr><td class="paramname">dir</td><td>rounding mode - rounds up if dir > 0, otherwise rounds down </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga1a9b7c48b94d8cbeffc6847f3b884dcc"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_playback_switch </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set value of playback switch control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">value</td><td>control value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="gaa3e28640247b4eef389269b92f5b4a9d"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_playback_switch_all </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set value of playback switch control for all channels of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">value</td><td>control value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga1e4556740beefc8bed40677a316e60ac"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_playback_volume </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___simple_mixer.html#gaf01a92f33cc46d0b3878d65afcc41b97">snd_mixer_selem_channel_id_t</a> </td> <td class="paramname"><em>channel</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set value of playback volume control of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">channel</td><td>mixer simple element channel identifier </td></tr> <tr><td class="paramname">value</td><td>control value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="ga2567351a2a7a70e6dda81f5ccc38d04b"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_playback_volume_all </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>value</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set value of playback volume control for all channels of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">value</td><td>control value </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>0 on success otherwise a negative error code </dd></dl> </div> </div> <a class="anchor" id="gaf4b095372a07bcdf769d74fa73c803d5"></a> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_mixer_selem_set_playback_volume_range </td> <td>(</td> <td class="paramtype"><a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> * </td> <td class="paramname"><em>elem</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>min</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">long </td> <td class="paramname"><em>max</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Set range for playback volume of a mixer simple element. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">elem</td><td>Mixer simple element handle </td></tr> <tr><td class="paramname">min</td><td>minimum volume value </td></tr> <tr><td class="paramname">max</td><td>maximum volume value </td></tr> </table> </dd> </dl> </div> </div> </div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.5 </small></address> </body> </html>
