<!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 1.8.7"/>
<title>ALSA project - the C library reference: snd_ctl_ext_t Struct Reference</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 1.8.7 -->
<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 class="current"><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 searchBox.OnSearchSelectHide()"
alt=""/>
<input type="text" id="MSearchField" value="Search" accesskey="S"
onfocus="searchBox.OnSearchFieldFocus(true)"
onblur="searchBox.OnSearchFieldFocus(false)"
onkeyup="searchBox.OnSearchFieldChange(event)"/>
</span><span class="right">
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
</span>
</div>
</li>
</ul>
</div>
<div id="navrow2" class="tabs2">
<ul class="tablist">
<li><a href="annotated.html"><span>Data Structures</span></a></li>
<li><a href="classes.html"><span>Data Structure Index</span></a></li>
<li><a href="functions.html"><span>Data Fields</span></a></li>
</ul>
</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>Macros</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(9)"><span class="SelectionMark"> </span>Groups</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(10)"><span class="SelectionMark"> </span>Pages</a></div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
</div><!-- top -->
<div class="header">
<div class="summary">
<a href="#pub-attribs">Data Fields</a> </div>
<div class="headertitle">
<div class="title">snd_ctl_ext_t Struct Reference<div class="ingroups"><a class="el" href="group___ctl_plugin___s_d_k.html">External Control Plugin SDK</a></div></div> </div>
</div><!--header-->
<div class="contents">
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Data Fields</h2></td></tr>
<tr class="memitem:af3599d3baa6b5ceadecbfbd74b8b773f"><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#af3599d3baa6b5ceadecbfbd74b8b773f">version</a></td></tr>
<tr class="separator:af3599d3baa6b5ceadecbfbd74b8b773f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac922ab575590b3d179ee439c0891d952"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#ac922ab575590b3d179ee439c0891d952">card_idx</a></td></tr>
<tr class="separator:ac922ab575590b3d179ee439c0891d952"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a378f125e90ce9a0f20823c056d638263"><td class="memItemLeft" align="right" valign="top">char </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#a378f125e90ce9a0f20823c056d638263">id</a> [16]</td></tr>
<tr class="separator:a378f125e90ce9a0f20823c056d638263"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae170b3a14d45d3bb830a91773bb832f4"><td class="memItemLeft" align="right" valign="top">char </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#ae170b3a14d45d3bb830a91773bb832f4">driver</a> [16]</td></tr>
<tr class="separator:ae170b3a14d45d3bb830a91773bb832f4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a186de36995e8f5d879fcf3abea5aeff2"><td class="memItemLeft" align="right" valign="top">char </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#a186de36995e8f5d879fcf3abea5aeff2">name</a> [32]</td></tr>
<tr class="separator:a186de36995e8f5d879fcf3abea5aeff2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3863dfbb46d66f4cd43d93d42d58e393"><td class="memItemLeft" align="right" valign="top">char </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#a3863dfbb46d66f4cd43d93d42d58e393">longname</a> [80]</td></tr>
<tr class="separator:a3863dfbb46d66f4cd43d93d42d58e393"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a44e14783e538144eac71a6df139989b5"><td class="memItemLeft" align="right" valign="top">char </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#a44e14783e538144eac71a6df139989b5">mixername</a> [80]</td></tr>
<tr class="separator:a44e14783e538144eac71a6df139989b5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1b3bab17945ce89342aae1928bd33657"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#a1b3bab17945ce89342aae1928bd33657">poll_fd</a></td></tr>
<tr class="separator:a1b3bab17945ce89342aae1928bd33657"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a24823fabe7534fdc7ebf0a12461ba9fc"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="group___ctl_plugin___s_d_k.html#ga8185c9a0e27e9562511a82dda1d20ddf">snd_ctl_ext_callback_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#a24823fabe7534fdc7ebf0a12461ba9fc">callback</a></td></tr>
<tr class="separator:a24823fabe7534fdc7ebf0a12461ba9fc"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abae840f5d02c49540b23b23285248d2b"><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#abae840f5d02c49540b23b23285248d2b">private_data</a></td></tr>
<tr class="separator:abae840f5d02c49540b23b23285248d2b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af014c69147bee94eaddca82d6916326f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___control.html#ga06628f38def84a0fe3da74041db9d51f">snd_ctl_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#af014c69147bee94eaddca82d6916326f">handle</a></td></tr>
<tr class="separator:af014c69147bee94eaddca82d6916326f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3688ec45a9f38ba73c1ae9058414b033"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#a3688ec45a9f38ba73c1ae9058414b033">nonblock</a></td></tr>
<tr class="separator:a3688ec45a9f38ba73c1ae9058414b033"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3a07d58cb46680c6cb9023dbf72e3120"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#a3a07d58cb46680c6cb9023dbf72e3120">subscribed</a></td></tr>
<tr class="separator:a3a07d58cb46680c6cb9023dbf72e3120"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abf57ae6adacfa8d8a49791c5ca47ebd3"><td class="memItemLeft" >union {</td></tr>
<tr class="memitem:abd75a2b6d318b0ef7e480184ab2ea0e9"><td class="memItemLeft" ><a class="anchor" id="af74ede3410a67d4810cb58d4f9015d7c"></a>
   <a class="el" href="group___ctl_plugin___s_d_k.html#gad7fdc2e15d89921ad090e96579099b2b">snd_ctl_ext_tlv_rw_t</a> *   <b>c</b></td></tr>
<tr class="separator:abd75a2b6d318b0ef7e480184ab2ea0e9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aca7be3d837c97dd80adaab2c5b210b4a"><td class="memItemLeft" ><a class="anchor" id="aedb26deac67902e906a67456da21a6a3"></a>
   const unsigned int *   <b>p</b></td></tr>
<tr class="separator:aca7be3d837c97dd80adaab2c5b210b4a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abf57ae6adacfa8d8a49791c5ca47ebd3"><td class="memItemLeft" valign="top">} </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#abf57ae6adacfa8d8a49791c5ca47ebd3">tlv</a></td></tr>
<tr class="separator:abf57ae6adacfa8d8a49791c5ca47ebd3"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Handle of control ext</p>
<p>External control plugin handle </p>
</div><h2 class="groupheader">Field Documentation</h2>
<a class="anchor" id="a24823fabe7534fdc7ebf0a12461ba9fc"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">const <a class="el" href="group___ctl_plugin___s_d_k.html#ga8185c9a0e27e9562511a82dda1d20ddf">snd_ctl_ext_callback_t</a>* snd_ctl_ext_t::callback</td>
</tr>
</table>
</div><div class="memdoc">
<p>callbacks of this plugin; must be filled before calling <a class="el" href="group___p_c_m___i_o_plug.html#ga7fb5213a5e776246e2b4dc53ec8d7604" title="Create an ioplug instance. ">snd_pcm_ioplug_create()</a> </p>
</div>
</div>
<a class="anchor" id="ac922ab575590b3d179ee439c0891d952"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int snd_ctl_ext_t::card_idx</td>
</tr>
</table>
</div><div class="memdoc">
<p>Index of this card; must be filled before calling <a class="el" href="group___ctl_plugin___s_d_k.html#ga317775f9c5e239781e71735ca5ba1ca6" title="Create an external control plugin instance. ">snd_ctl_ext_create()</a> </p>
</div>
</div>
<a class="anchor" id="ae170b3a14d45d3bb830a91773bb832f4"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">char snd_ctl_ext_t::driver[16]</td>
</tr>
</table>
</div><div class="memdoc">
<p>Driver name of this card; must be filled before calling <a class="el" href="group___ctl_plugin___s_d_k.html#ga317775f9c5e239781e71735ca5ba1ca6" title="Create an external control plugin instance. ">snd_ctl_ext_create()</a> </p>
</div>
</div>
<a class="anchor" id="af014c69147bee94eaddca82d6916326f"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group___control.html#ga06628f38def84a0fe3da74041db9d51f">snd_ctl_t</a>* snd_ctl_ext_t::handle</td>
</tr>
</table>
</div><div class="memdoc">
<p>control handle filled by <a class="el" href="group___ctl_plugin___s_d_k.html#ga317775f9c5e239781e71735ca5ba1ca6" title="Create an external control plugin instance. ">snd_ctl_ext_create()</a> </p>
</div>
</div>
<a class="anchor" id="a378f125e90ce9a0f20823c056d638263"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">char snd_ctl_ext_t::id[16]</td>
</tr>
</table>
</div><div class="memdoc">
<p>ID string of this card; must be filled before calling <a class="el" href="group___ctl_plugin___s_d_k.html#ga317775f9c5e239781e71735ca5ba1ca6" title="Create an external control plugin instance. ">snd_ctl_ext_create()</a> </p>
</div>
</div>
<a class="anchor" id="a3863dfbb46d66f4cd43d93d42d58e393"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">char snd_ctl_ext_t::longname[80]</td>
</tr>
</table>
</div><div class="memdoc">
<p>Long name of this card; must be filled before calling <a class="el" href="group___ctl_plugin___s_d_k.html#ga317775f9c5e239781e71735ca5ba1ca6" title="Create an external control plugin instance. ">snd_ctl_ext_create()</a> </p>
</div>
</div>
<a class="anchor" id="a44e14783e538144eac71a6df139989b5"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">char snd_ctl_ext_t::mixername[80]</td>
</tr>
</table>
</div><div class="memdoc">
<p>Mixer name of this card; must be filled before calling <a class="el" href="group___ctl_plugin___s_d_k.html#ga317775f9c5e239781e71735ca5ba1ca6" title="Create an external control plugin instance. ">snd_ctl_ext_create()</a> </p>
</div>
</div>
<a class="anchor" id="a186de36995e8f5d879fcf3abea5aeff2"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">char snd_ctl_ext_t::name[32]</td>
</tr>
</table>
</div><div class="memdoc">
<p>short name of this card; must be filled before calling <a class="el" href="group___ctl_plugin___s_d_k.html#ga317775f9c5e239781e71735ca5ba1ca6" title="Create an external control plugin instance. ">snd_ctl_ext_create()</a> </p>
</div>
</div>
<a class="anchor" id="a3688ec45a9f38ba73c1ae9058414b033"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int snd_ctl_ext_t::nonblock</td>
</tr>
</table>
</div><div class="memdoc">
<p>non-block mode; read-only </p>
</div>
</div>
<a class="anchor" id="a1b3bab17945ce89342aae1928bd33657"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int snd_ctl_ext_t::poll_fd</td>
</tr>
</table>
</div><div class="memdoc">
<p>poll descriptor </p>
</div>
</div>
<a class="anchor" id="abae840f5d02c49540b23b23285248d2b"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void* snd_ctl_ext_t::private_data</td>
</tr>
</table>
</div><div class="memdoc">
<p>private data, which can be used freely in the driver callbacks </p>
</div>
</div>
<a class="anchor" id="a3a07d58cb46680c6cb9023dbf72e3120"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int snd_ctl_ext_t::subscribed</td>
</tr>
</table>
</div><div class="memdoc">
<p>events subscribed; read-only </p>
</div>
</div>
<a class="anchor" id="abf57ae6adacfa8d8a49791c5ca47ebd3"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">union { ... } snd_ctl_ext_t::tlv</td>
</tr>
</table>
</div><div class="memdoc">
<p>optional TLV data for the control (since protocol 1.0.1) </p>
</div>
</div>
<a class="anchor" id="af3599d3baa6b5ceadecbfbd74b8b773f"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">unsigned int snd_ctl_ext_t::version</td>
</tr>
</table>
</div><div class="memdoc">
<p>protocol version; <a class="el" href="group___ctl_plugin___s_d_k.html#ga65ea29f84b09ee3e640f88b06d05a1a2">SND_CTL_EXT_VERSION</a> must be filled here before calling <a class="el" href="group___ctl_plugin___s_d_k.html#ga317775f9c5e239781e71735ca5ba1ca6" title="Create an external control plugin instance. ">snd_ctl_ext_create()</a> </p>
</div>
</div>
<hr/>The documentation for this struct was generated from the following file:<ul>
<li>/home/iurt/rpmbuild/BUILD/alsa-lib-1.0.28/include/<a class="el" href="control__external_8h_source.html">control_external.h</a></li>
</ul>
</div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated on Wed Jun 18 2014 05:47:50 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> 1.8.7
</small></address>
</body>
</html>
distrib
>
Mageia
>
5
>
i586
>
media
>
core-release
>
by-pkgid
>
406d9b580cc28afca9442eab7324087d
>
files
>
431
