<!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_pcm_ioplug_callback_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_pcm_ioplug_callback_t Struct Reference<div class="ingroups"><a class="el" href="group___p_c_m___i_o_plug.html">External I/O 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:a26130cd61ac1c47d788fb806de7e53d0"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#a26130cd61ac1c47d788fb806de7e53d0">start</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td></tr>
<tr class="separator:a26130cd61ac1c47d788fb806de7e53d0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:afbbb193940d8a0fdd04d2d91d885e9f5"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#afbbb193940d8a0fdd04d2d91d885e9f5">stop</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td></tr>
<tr class="separator:afbbb193940d8a0fdd04d2d91d885e9f5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7a074906f3037b4f6dcc28d6136f7a68"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___p_c_m.html#ga71cdfa37e258d2210b8bd0216bf0c36c">snd_pcm_sframes_t</a>(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#a7a074906f3037b4f6dcc28d6136f7a68">pointer</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td></tr>
<tr class="separator:a7a074906f3037b4f6dcc28d6136f7a68"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3a9578f0e8f2de4203e988c3a5a205fb"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___p_c_m.html#ga71cdfa37e258d2210b8bd0216bf0c36c">snd_pcm_sframes_t</a>(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#a3a9578f0e8f2de4203e988c3a5a205fb">transfer</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, const <a class="el" href="structsnd__pcm__channel__area__t.html">snd_pcm_channel_area_t</a> *areas, <a class="el" href="group___p_c_m.html#gab01fcfe9b97382a8d3f2027c664b8b8a">snd_pcm_uframes_t</a> offset, <a class="el" href="group___p_c_m.html#gab01fcfe9b97382a8d3f2027c664b8b8a">snd_pcm_uframes_t</a> size)</td></tr>
<tr class="separator:a3a9578f0e8f2de4203e988c3a5a205fb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:afd642130ecae71293caa15279c98537e"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#afd642130ecae71293caa15279c98537e">close</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td></tr>
<tr class="separator:afd642130ecae71293caa15279c98537e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a411078734ab59626c15d459800998e3d"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#a411078734ab59626c15d459800998e3d">hw_params</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, <a class="el" href="group___p_c_m.html#ga65c737127994f0a980edad744e36dc40">snd_pcm_hw_params_t</a> *params)</td></tr>
<tr class="separator:a411078734ab59626c15d459800998e3d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a574be37b1eeed5f39806c2386a02a63f"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#a574be37b1eeed5f39806c2386a02a63f">hw_free</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td></tr>
<tr class="separator:a574be37b1eeed5f39806c2386a02a63f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a67eceefe04515ec6e18c23cff297f920"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#a67eceefe04515ec6e18c23cff297f920">sw_params</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, <a class="el" href="group___p_c_m.html#ga7e082d9ea701709270b0674a0be23b09">snd_pcm_sw_params_t</a> *params)</td></tr>
<tr class="separator:a67eceefe04515ec6e18c23cff297f920"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a345566330b8ff81a954452091c3ee03b"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#a345566330b8ff81a954452091c3ee03b">prepare</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td></tr>
<tr class="separator:a345566330b8ff81a954452091c3ee03b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af1a1b3bc1616f228636f0273e8559fac"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#af1a1b3bc1616f228636f0273e8559fac">drain</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td></tr>
<tr class="separator:af1a1b3bc1616f228636f0273e8559fac"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3b80d9e3d96fd6fbc35cba3536f1a55e"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#a3b80d9e3d96fd6fbc35cba3536f1a55e">pause</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, int enable)</td></tr>
<tr class="separator:a3b80d9e3d96fd6fbc35cba3536f1a55e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab6618ecfb521e732deebc45b45a33fcf"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#ab6618ecfb521e732deebc45b45a33fcf">resume</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td></tr>
<tr class="separator:ab6618ecfb521e732deebc45b45a33fcf"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3d30deb039530293ce60596131f78c77"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#a3d30deb039530293ce60596131f78c77">poll_descriptors_count</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td></tr>
<tr class="separator:a3d30deb039530293ce60596131f78c77"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad58aff38733971f26c55f3bdcc5a8d74"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#ad58aff38733971f26c55f3bdcc5a8d74">poll_descriptors</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, struct pollfd *pfd, unsigned int space)</td></tr>
<tr class="separator:ad58aff38733971f26c55f3bdcc5a8d74"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae922861dc820140a47f600e744eb92c9"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#ae922861dc820140a47f600e744eb92c9">poll_revents</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, struct pollfd *pfd, unsigned int nfds, unsigned short *revents)</td></tr>
<tr class="separator:ae922861dc820140a47f600e744eb92c9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a112c1f4f3faa3d92ea3ca102b9958625"><td class="memItemLeft" align="right" valign="top">void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#a112c1f4f3faa3d92ea3ca102b9958625">dump</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, <a class="el" href="group___output.html#ga49729cc6454539495c1f5b6e95cd474a">snd_output_t</a> *out)</td></tr>
<tr class="separator:a112c1f4f3faa3d92ea3ca102b9958625"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a89ca5727bd4e9facc76416a40a0f6e8d"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#a89ca5727bd4e9facc76416a40a0f6e8d">delay</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, <a class="el" href="group___p_c_m.html#ga71cdfa37e258d2210b8bd0216bf0c36c">snd_pcm_sframes_t</a> *delayp)</td></tr>
<tr class="separator:a89ca5727bd4e9facc76416a40a0f6e8d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7118127cfe9d4c24b63cb1952c62ca91"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structsnd__pcm__chmap__query__t.html">snd_pcm_chmap_query_t</a> **(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#a7118127cfe9d4c24b63cb1952c62ca91">query_chmaps</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td></tr>
<tr class="separator:a7118127cfe9d4c24b63cb1952c62ca91"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac2ec050cc6077a5974d43dc20bc4a252"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structsnd__pcm__chmap__t.html">snd_pcm_chmap_t</a> *(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#ac2ec050cc6077a5974d43dc20bc4a252">get_chmap</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td></tr>
<tr class="separator:ac2ec050cc6077a5974d43dc20bc4a252"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac5659992bbbf2d4e3b5c35f64e602099"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__ioplug__callback.html#ac5659992bbbf2d4e3b5c35f64e602099">set_chmap</a> )(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, const <a class="el" href="structsnd__pcm__chmap__t.html">snd_pcm_chmap_t</a> *map)</td></tr>
<tr class="separator:ac5659992bbbf2d4e3b5c35f64e602099"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Callback table of ioplug </p>
</div><h2 class="groupheader">Field Documentation</h2>
<a class="anchor" id="afd642130ecae71293caa15279c98537e"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::close)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td>
</tr>
</table>
</div><div class="memdoc">
<p>close the PCM; optional </p>
</div>
</div>
<a class="anchor" id="a89ca5727bd4e9facc76416a40a0f6e8d"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::delay)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, <a class="el" href="group___p_c_m.html#ga71cdfa37e258d2210b8bd0216bf0c36c">snd_pcm_sframes_t</a> *delayp)</td>
</tr>
</table>
</div><div class="memdoc">
<p>get the delay for the running PCM; optional; since v1.0.1 </p>
</div>
</div>
<a class="anchor" id="af1a1b3bc1616f228636f0273e8559fac"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::drain)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td>
</tr>
</table>
</div><div class="memdoc">
<p>drain; optional </p>
</div>
</div>
<a class="anchor" id="a112c1f4f3faa3d92ea3ca102b9958625"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void(* snd_pcm_ioplug_callback_t::dump)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, <a class="el" href="group___output.html#ga49729cc6454539495c1f5b6e95cd474a">snd_output_t</a> *out)</td>
</tr>
</table>
</div><div class="memdoc">
<p>dump; optional </p>
</div>
</div>
<a class="anchor" id="ac2ec050cc6077a5974d43dc20bc4a252"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="structsnd__pcm__chmap__t.html">snd_pcm_chmap_t</a>*(* snd_pcm_ioplug_callback_t::get_chmap)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td>
</tr>
</table>
</div><div class="memdoc">
<p>get the channel map; optional; since v1.0.2 </p>
</div>
</div>
<a class="anchor" id="a574be37b1eeed5f39806c2386a02a63f"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::hw_free)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td>
</tr>
</table>
</div><div class="memdoc">
<p>hw_free; optional </p>
</div>
</div>
<a class="anchor" id="a411078734ab59626c15d459800998e3d"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::hw_params)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, <a class="el" href="group___p_c_m.html#ga65c737127994f0a980edad744e36dc40">snd_pcm_hw_params_t</a> *params)</td>
</tr>
</table>
</div><div class="memdoc">
<p>hw_params; optional </p>
</div>
</div>
<a class="anchor" id="a3b80d9e3d96fd6fbc35cba3536f1a55e"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::pause)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, int enable)</td>
</tr>
</table>
</div><div class="memdoc">
<p>toggle pause; optional </p>
</div>
</div>
<a class="anchor" id="a7a074906f3037b4f6dcc28d6136f7a68"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group___p_c_m.html#ga71cdfa37e258d2210b8bd0216bf0c36c">snd_pcm_sframes_t</a>(* snd_pcm_ioplug_callback_t::pointer)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td>
</tr>
</table>
</div><div class="memdoc">
<p>get the current DMA position; required </p>
</div>
</div>
<a class="anchor" id="ad58aff38733971f26c55f3bdcc5a8d74"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::poll_descriptors)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, struct pollfd *pfd, unsigned int space)</td>
</tr>
</table>
</div><div class="memdoc">
<p>poll descriptors; optional </p>
</div>
</div>
<a class="anchor" id="a3d30deb039530293ce60596131f78c77"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::poll_descriptors_count)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td>
</tr>
</table>
</div><div class="memdoc">
<p>poll descriptors count; optional </p>
</div>
</div>
<a class="anchor" id="ae922861dc820140a47f600e744eb92c9"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::poll_revents)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, struct pollfd *pfd, unsigned int nfds, unsigned short *revents)</td>
</tr>
</table>
</div><div class="memdoc">
<p>mangle poll events; optional </p>
</div>
</div>
<a class="anchor" id="a345566330b8ff81a954452091c3ee03b"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::prepare)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td>
</tr>
</table>
</div><div class="memdoc">
<p>prepare; optional </p>
</div>
</div>
<a class="anchor" id="a7118127cfe9d4c24b63cb1952c62ca91"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="structsnd__pcm__chmap__query__t.html">snd_pcm_chmap_query_t</a>**(* snd_pcm_ioplug_callback_t::query_chmaps)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td>
</tr>
</table>
</div><div class="memdoc">
<p>query the channel maps; optional; since v1.0.2 </p>
</div>
</div>
<a class="anchor" id="ab6618ecfb521e732deebc45b45a33fcf"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::resume)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td>
</tr>
</table>
</div><div class="memdoc">
<p>resume; optional </p>
</div>
</div>
<a class="anchor" id="ac5659992bbbf2d4e3b5c35f64e602099"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::set_chmap)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, const <a class="el" href="structsnd__pcm__chmap__t.html">snd_pcm_chmap_t</a> *map)</td>
</tr>
</table>
</div><div class="memdoc">
<p>set the channel map; optional; since v1.0.2 </p>
</div>
</div>
<a class="anchor" id="a26130cd61ac1c47d788fb806de7e53d0"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::start)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td>
</tr>
</table>
</div><div class="memdoc">
<p>start the PCM; required </p>
</div>
</div>
<a class="anchor" id="afbbb193940d8a0fdd04d2d91d885e9f5"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::stop)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io)</td>
</tr>
</table>
</div><div class="memdoc">
<p>stop the PCM; required </p>
</div>
</div>
<a class="anchor" id="a67eceefe04515ec6e18c23cff297f920"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int(* snd_pcm_ioplug_callback_t::sw_params)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, <a class="el" href="group___p_c_m.html#ga7e082d9ea701709270b0674a0be23b09">snd_pcm_sw_params_t</a> *params)</td>
</tr>
</table>
</div><div class="memdoc">
<p>sw_params; optional </p>
</div>
</div>
<a class="anchor" id="a3a9578f0e8f2de4203e988c3a5a205fb"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group___p_c_m.html#ga71cdfa37e258d2210b8bd0216bf0c36c">snd_pcm_sframes_t</a>(* snd_pcm_ioplug_callback_t::transfer)(<a class="el" href="group___p_c_m___i_o_plug.html#ga1038655a4ca74f3aef060282d6df739b">snd_pcm_ioplug_t</a> *io, const <a class="el" href="structsnd__pcm__channel__area__t.html">snd_pcm_channel_area_t</a> *areas, <a class="el" href="group___p_c_m.html#gab01fcfe9b97382a8d3f2027c664b8b8a">snd_pcm_uframes_t</a> offset, <a class="el" href="group___p_c_m.html#gab01fcfe9b97382a8d3f2027c664b8b8a">snd_pcm_uframes_t</a> size)</td>
</tr>
</table>
</div><div class="memdoc">
<p>transfer the data; optional </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="pcm__ioplug_8h_source.html">pcm_ioplug.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
>
441
