<!-- This comment will put IE 6, 7 and 8 in quirks mode -->
<!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"/>
<title>ALSA project - the C library reference: /home/qateam/rpm/BUILD/alsa-lib-1.0.23/src/mixer/mixer.c File Reference</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javaScript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css"/>
</head>
<body onload='searchBox.OnSelectItem(0);'>
<!-- Generated by Doxygen 1.6.3 -->
<script type="text/javascript"><!--
var searchBox = new SearchBox("searchBox", "search",false,'Search');
--></script>
<div class="navigation" id="top">
<div class="tabs">
<ul>
<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 class="current"><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">
<img id="MSearchSelect" src="search/search.png"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
alt=""/>
<input type="text" id="MSearchField" value="Search" accesskey="S"
onfocus="searchBox.OnSearchFieldFocus(true)"
onblur="searchBox.OnSearchFieldFocus(false)"
onkeyup="searchBox.OnSearchFieldChange(event)"/>
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
</div>
</li>
</ul>
</div>
<div class="tabs">
<ul>
<li><a href="files.html"><span>File List</span></a></li>
<li><a href="globals.html"><span>Globals</span></a></li>
</ul>
</div>
</div>
<div class="contents">
<h1>/home/qateam/rpm/BUILD/alsa-lib-1.0.23/src/mixer/mixer.c File Reference</h1>
<p>Mixer Interface.
<a href="#_details">More...</a></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga240cfebce7d68f22875d76e99cf19394">snd_mixer_open</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> **mixerp, int mode)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Opens an empty mixer. <a href="group___mixer.html#ga240cfebce7d68f22875d76e99cf19394"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gabe7f0255c9a981a6c73a8edf359781cc">snd_mixer_elem_attach</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *melem, <a class="el" href="group___h_control.html#gaddfb152863e87857d463c7008d72ad74">snd_hctl_elem_t</a> *helem)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Attach an HCTL element to a mixer element. <a href="group___mixer.html#gabe7f0255c9a981a6c73a8edf359781cc"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga7413e8f80e2e556c75c6b9fc7d0598f9">snd_mixer_elem_detach</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *melem, <a class="el" href="group___h_control.html#gaddfb152863e87857d463c7008d72ad74">snd_hctl_elem_t</a> *helem)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Detach an HCTL element from a mixer element. <a href="group___mixer.html#ga7413e8f80e2e556c75c6b9fc7d0598f9"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gae0541b86ecfc094a172b4cd29bb70fd0">snd_mixer_elem_empty</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *melem)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return true if a mixer element does not contain any HCTL elements. <a href="group___mixer.html#gae0541b86ecfc094a172b4cd29bb70fd0"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga8c36e99e3d2ab0cb76a5acd203face45">snd_mixer_attach</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer, const char *name)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Attach an HCTL specified with the CTL device name to an opened mixer. <a href="group___mixer.html#ga8c36e99e3d2ab0cb76a5acd203face45"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga01e5feeb925addfc245ce81c037b1397">snd_mixer_attach_hctl</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer, <a class="el" href="group___h_control.html#ga13c9ad52c57ab7db06065a7f806b2369">snd_hctl_t</a> *hctl)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Attach an HCTL to an opened mixer. <a href="group___mixer.html#ga01e5feeb925addfc245ce81c037b1397"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga99ca1c15d46d5f194a216d5e0a8e9229">snd_mixer_detach</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer, const char *name)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Detach a previously attached HCTL to an opened mixer freeing all related resources. <a href="group___mixer.html#ga99ca1c15d46d5f194a216d5e0a8e9229"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga63b6f8183e08a2b3e6bb83638828e8df">snd_mixer_detach_hctl</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer, <a class="el" href="group___h_control.html#ga13c9ad52c57ab7db06065a7f806b2369">snd_hctl_t</a> *hctl)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Detach a previously attached HCTL to an opened mixer freeing all related resources. <a href="group___mixer.html#ga63b6f8183e08a2b3e6bb83638828e8df"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gafbbaedd662ea57e573e09f39ca8b247c">snd_mixer_get_hctl</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer, const char *name, <a class="el" href="group___h_control.html#ga13c9ad52c57ab7db06065a7f806b2369">snd_hctl_t</a> **hctl)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Obtain a HCTL pointer associated to given name. <a href="group___mixer.html#gafbbaedd662ea57e573e09f39ca8b247c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga4cfddf235c06ae83765ecfd45c5a95d0">snd_mixer_elem_get_private</a> (const <a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get private data associated to give mixer element. <a href="group___mixer.html#ga4cfddf235c06ae83765ecfd45c5a95d0"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga226cf962e72b6132fd61cbd434b28941">snd_mixer_elem_new</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> **elem, <a class="el" href="group___mixer.html#ga18a15493e66cc90ab851e49161d28b4c">snd_mixer_elem_type_t</a> type, int compare_weight, void *private_data, void(*private_free)(<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem))</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allocate a new mixer element. <a href="group___mixer.html#ga226cf962e72b6132fd61cbd434b28941"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga3b0e73914256f2125d2b7bb48d602457">snd_mixer_elem_add</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem, <a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *class)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add an element for a registered mixer element class. <a href="group___mixer.html#ga3b0e73914256f2125d2b7bb48d602457"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gacad36ead935e96f75fe44cf8dd4afa2a">snd_mixer_elem_remove</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Remove a mixer element. <a href="group___mixer.html#gacad36ead935e96f75fe44cf8dd4afa2a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga40d8bf56621085d5ed5a7e92ad067e03">snd_mixer_elem_free</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Free a mixer element. <a href="group___mixer.html#ga40d8bf56621085d5ed5a7e92ad067e03"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gae4a32f9d571201a2bf33a65340dc9afd">snd_mixer_elem_info</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Mixer element informations are changed. <a href="group___mixer.html#gae4a32f9d571201a2bf33a65340dc9afd"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga0d23278769e37532f810cecf2ffffacb">snd_mixer_elem_value</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Mixer element values is changed. <a href="group___mixer.html#ga0d23278769e37532f810cecf2ffffacb"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga595cbd9394f85f9af4a6b30e748e3930">snd_mixer_class_register</a> (<a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *class, <a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Register mixer element class. <a href="group___mixer.html#ga595cbd9394f85f9af4a6b30e748e3930"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga6a7bf3805fbbfc3f6f8243e91fbce5f6">snd_mixer_class_unregister</a> (<a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *class)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Unregister mixer element class and remove all its elements. <a href="group___mixer.html#ga6a7bf3805fbbfc3f6f8243e91fbce5f6"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga24b6077528d04cb9fca072b3ae109aef">snd_mixer_load</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Load a mixer elements. <a href="group___mixer.html#ga24b6077528d04cb9fca072b3ae109aef"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga93a71c28e82c04e4c732703e309910fd">snd_mixer_free</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Unload all mixer elements and free all related resources. <a href="group___mixer.html#ga93a71c28e82c04e4c732703e309910fd"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga9deea3f628bf737001d968620cfd3b1a">snd_mixer_close</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Close a mixer and free all related resources. <a href="group___mixer.html#ga9deea3f628bf737001d968620cfd3b1a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gac7e1bbe5d5b69a6ee67d5bced6325a67">snd_mixer_set_compare</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer, <a class="el" href="group___mixer.html#gae133dc10af535ebba0c717c23889f619">snd_mixer_compare_t</a> compare)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Change mixer compare function and reorder elements. <a href="group___mixer.html#gac7e1bbe5d5b69a6ee67d5bced6325a67"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gab3ee14782a19e6d62acbdcdb5f9f7786">snd_mixer_poll_descriptors_count</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">get count of poll descriptors for mixer handle <a href="group___mixer.html#gab3ee14782a19e6d62acbdcdb5f9f7786"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga07f7bc33587907988aaffc03ce72367e">snd_mixer_poll_descriptors</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer, struct pollfd *pfds, unsigned int space)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">get poll descriptors <a href="group___mixer.html#ga07f7bc33587907988aaffc03ce72367e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gab26686311756ee3c66e05766227df818">snd_mixer_poll_descriptors_revents</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer, struct pollfd *pfds, unsigned int nfds, unsigned short *revents)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">get returned events from poll descriptors <a href="group___mixer.html#gab26686311756ee3c66e05766227df818"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga072846849f4bc2058336fd6601f18a15">snd_mixer_wait</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer, int timeout)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Wait for a mixer to become ready (i.e. at least one event pending). <a href="group___mixer.html#ga072846849f4bc2058336fd6601f18a15"></a><br/></td></tr>
<tr><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___mixer.html#gaffccf51ddf8ecdc357b216cb979a2318">snd_mixer_first_elem</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">get first element for a mixer <a href="group___mixer.html#gaffccf51ddf8ecdc357b216cb979a2318"></a><br/></td></tr>
<tr><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___mixer.html#ga51121b263ea3d3ee9367aabfd338ef11">snd_mixer_last_elem</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">get last element for a mixer <a href="group___mixer.html#ga51121b263ea3d3ee9367aabfd338ef11"></a><br/></td></tr>
<tr><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___mixer.html#ga68254228ef108122b8178087ea0fcc16">snd_mixer_elem_next</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">get next mixer element <a href="group___mixer.html#ga68254228ef108122b8178087ea0fcc16"></a><br/></td></tr>
<tr><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___mixer.html#gaaf9a9dfe1d52f40df2be517621f9474a">snd_mixer_elem_prev</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *elem)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">get previous mixer element <a href="group___mixer.html#gaaf9a9dfe1d52f40df2be517621f9474a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gae0cfb6b50ec2493281107b0649f87cb8">snd_mixer_handle_events</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Handle pending mixer events invoking callbacks. <a href="group___mixer.html#gae0cfb6b50ec2493281107b0649f87cb8"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga691a593ea0a32f9535fff83b00a0a574">snd_mixer_set_callback</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *obj, <a class="el" href="group___mixer.html#ga9e108905ed4fa236faa49f003c002d95">snd_mixer_callback_t</a> val)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set callback function for a mixer. <a href="group___mixer.html#ga691a593ea0a32f9535fff83b00a0a574"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gab91fc99ac65c866e660d4d8be0cb3e17">snd_mixer_set_callback_private</a> (<a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer, void *val)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set callback private value for a mixer. <a href="group___mixer.html#gab91fc99ac65c866e660d4d8be0cb3e17"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga9cfc303fa34eb234efeb52151838f88b">snd_mixer_get_callback_private</a> (const <a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get callback private value for a mixer. <a href="group___mixer.html#ga9cfc303fa34eb234efeb52151838f88b"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga3447c190c69cfce4c52df4ad3300e319">snd_mixer_get_count</a> (const <a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> *mixer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get elements count for a mixer. <a href="group___mixer.html#ga3447c190c69cfce4c52df4ad3300e319"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga01e1fd766a313ce513f561bd03c98317">snd_mixer_elem_set_callback</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *mixer, <a class="el" href="group___mixer.html#gabb270fe0068703dee2df0caffa69498f">snd_mixer_elem_callback_t</a> val)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set callback function for a mixer element. <a href="group___mixer.html#ga01e1fd766a313ce513f561bd03c98317"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga4fb4ea11326c1cb1fdbf5dac0444507e">snd_mixer_elem_set_callback_private</a> (<a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *mixer, void *val)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set callback private value for a mixer element. <a href="group___mixer.html#ga4fb4ea11326c1cb1fdbf5dac0444507e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga78c51ad2e60617137e47ad1d58b45916">snd_mixer_elem_get_callback_private</a> (const <a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *mixer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get callback private value for a mixer element. <a href="group___mixer.html#ga78c51ad2e60617137e47ad1d58b45916"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___mixer.html#ga18a15493e66cc90ab851e49161d28b4c">snd_mixer_elem_type_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga1083ba441bb93da13f79bc0cda226ea3">snd_mixer_elem_get_type</a> (const <a class="el" href="group___mixer.html#ga9bb5eb24e4feea6c1a04c79b77938ef9">snd_mixer_elem_t</a> *mixer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get type for a mixer element. <a href="group___mixer.html#ga1083ba441bb93da13f79bc0cda226ea3"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gaa61b83017a92b67ea27a18777dcd141d">snd_mixer_class_sizeof</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">get size of <a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> <a href="group___mixer.html#gaa61b83017a92b67ea27a18777dcd141d"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gadc36fd49fdeccc37c41fc700d29adf39">snd_mixer_class_malloc</a> (<a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> **ptr)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">allocate an invalid <a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> using standard malloc <a href="group___mixer.html#gadc36fd49fdeccc37c41fc700d29adf39"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gafef7028555b5c50b9bb072ba6d441ddb">snd_mixer_class_free</a> (<a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">frees a previously allocated <a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> <a href="group___mixer.html#gafef7028555b5c50b9bb072ba6d441ddb"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gabaaa35c5538fec113fffdaff4cbed2fc">snd_mixer_class_copy</a> (<a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *dst, const <a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *src)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">copy one <a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> to another <a href="group___mixer.html#gabaaa35c5538fec113fffdaff4cbed2fc"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___mixer.html#ga34161447bc01a64f578456ed13d57e33">snd_mixer_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga07e5edf36e361b3c1293ed14d2ef5b76">snd_mixer_class_get_mixer</a> (const <a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get a mixer associated to given mixer class. <a href="group___mixer.html#ga07e5edf36e361b3c1293ed14d2ef5b76"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___mixer.html#gacad1f279dc4c9dcd259293b3b38196ef">snd_mixer_event_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga5744823b495ae331e7dd60f2abdf3589">snd_mixer_class_get_event</a> (const <a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get mixer event callback associated to given mixer class. <a href="group___mixer.html#ga5744823b495ae331e7dd60f2abdf3589"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#ga95b50447f32262756143cd7d9e76997c">snd_mixer_class_get_private</a> (const <a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get mixer private data associated to given mixer class. <a href="group___mixer.html#ga95b50447f32262756143cd7d9e76997c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___mixer.html#gae133dc10af535ebba0c717c23889f619">snd_mixer_compare_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gad7182d1d18653709bf26fc53a8b1a94f">snd_mixer_class_get_compare</a> (const <a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *obj)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get mixer compare callback associated to given mixer class. <a href="group___mixer.html#gad7182d1d18653709bf26fc53a8b1a94f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gad0162769035880347ea9af0dbc518e79">snd_mixer_class_set_event</a> (<a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *obj, <a class="el" href="group___mixer.html#gacad1f279dc4c9dcd259293b3b38196ef">snd_mixer_event_t</a> event)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set mixer event callback to given mixer class. <a href="group___mixer.html#gad0162769035880347ea9af0dbc518e79"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gaf3b845bb0637fc59cacfe59ef29398d2">snd_mixer_class_set_private</a> (<a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *obj, void *private_data)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set mixer private data to given mixer class. <a href="group___mixer.html#gaf3b845bb0637fc59cacfe59ef29398d2"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="mixer_8c.html#aff1fddf7d4a2fe613661710e5b34de4f">snd_mixer_class_set_private_free</a> (<a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *obj, void(*private_free)(<a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *class))</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set mixer private data free callback to given mixer class. <a href="#aff1fddf7d4a2fe613661710e5b34de4f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___mixer.html#gab389fb10998a950207001e3f8abead26">snd_mixer_class_set_compare</a> (<a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *obj, <a class="el" href="group___mixer.html#gae133dc10af535ebba0c717c23889f619">snd_mixer_compare_t</a> compare)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set mixer compare callback to given mixer class. <a href="group___mixer.html#gab389fb10998a950207001e3f8abead26"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>Mixer Interface. </p>
<dl class="author"><dt><b>Author:</b></dt><dd>Jaroslav Kysela <<a href="mailto:perex@perex.cz">perex@perex.cz</a>> </dd>
<dd>
Abramo Bagnara <<a href="mailto:abramo@alsa-project.org">abramo@alsa-project.org</a>> </dd></dl>
<dl class="date"><dt><b>Date:</b></dt><dd>2001</dd></dl>
<p>Mixer interface is designed to access mixer elements. Callbacks may be used for event handling. </p>
<hr/><h2>Function Documentation</h2>
<a class="anchor" id="aff1fddf7d4a2fe613661710e5b34de4f"></a><!-- doxytag: member="mixer.c::snd_mixer_class_set_private_free" ref="aff1fddf7d4a2fe613661710e5b34de4f" args="(snd_mixer_class_t *obj, void(*private_free)(snd_mixer_class_t *class))" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int snd_mixer_class_set_private_free </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> * </td>
<td class="paramname"> <em>obj</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void(*)(<a class="el" href="group___mixer.html#ga51c7b205d5afc62342d9dec3ce54d11f">snd_mixer_class_t</a> *class) </td>
<td class="paramname"> <em>private_free</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Set mixer private data free callback to given mixer class. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>Mixer simple class identifier </td></tr>
<tr><td valign="top"></td><td valign="top"><em>private_free</em> </td><td>Mixer class private data free callback </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>zero if success, otherwise a negative error code </dd></dl>
</div>
</div>
</div>
<!--- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Data Structures</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Defines</a></div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<hr class="footer"/><address style="text-align: right;"><small>Generated on Sat Nov 20 07:42:24 2010 for ALSA project - the C library reference by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.3 </small></address>
</body>
</html>
