<!-- 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: /builddir/build/BUILD/alsa-lib-1.0.23/include/control_external.h 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 1.6.2-20100208 --> <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 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List</span></a></li> <li><a href="globals.html"><span>Globals</span></a></li> </ul> </div> </div> <div class="contents"> <h1>/builddir/build/BUILD/alsa-lib-1.0.23/include/control_external.h File Reference</h1> <p>External control plugin SDK. <a href="#_details">More...</a></p> <p><a href="control__external_8h_source.html">Go to the source code of this file.</a></p> <table border="0" cellpadding="0" cellspacing="0"> <tr><td colspan="2"><h2>Data Structures</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html">snd_ctl_ext_t</a></td></tr> <tr><td class="memItemLeft" align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext__callback.html">snd_ctl_ext_callback_t</a></td></tr> <tr><td colspan="2"><h2>Defines</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ctl_plugin___s_d_k.html#gac015d294d7ae50614f6991da93893c3b">SND_CTL_PLUGIN_ENTRY</a>(name) _snd_ctl_##name##_open</td></tr> <tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ctl_plugin___s_d_k.html#gaa94fc65e8951f16e4b273b0f81e90f7e">SND_CTL_PLUGIN_SYMBOL</a>(name) SND_DLSYM_BUILD_VERSION(SND_CTL_PLUGIN_ENTRY(name), SND_CONTROL_DLSYM_VERSION);</td></tr> <tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ctl_plugin___s_d_k.html#ga13e494fe5c6068d6608a974f5a62a430">SND_CTL_PLUGIN_DEFINE_FUNC</a>(plugin)</td></tr> <tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ctl_plugin___s_d_k.html#ga110bc1818d56d22b89e2773d7c54a115">SND_CTL_EXT_VERSION_MAJOR</a> 1</td></tr> <tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ctl_plugin___s_d_k.html#ga9ace8ce6f67297cba3bb365b600c8bd8">SND_CTL_EXT_VERSION_MINOR</a> 0</td></tr> <tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ctl_plugin___s_d_k.html#gae99e1c9ee4d5c9e9afaa0376a2af96eb">SND_CTL_EXT_VERSION_TINY</a> 0</td></tr> <tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ctl_plugin___s_d_k.html#ga65ea29f84b09ee3e640f88b06d05a1a2">SND_CTL_EXT_VERSION</a></td></tr> <tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ctl_plugin___s_d_k.html#gac1f0737189a30bbb1e4dcbf681df39fd">SND_CTL_EXT_KEY_NOT_FOUND</a> (<a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a>)(-1)</td></tr> <tr><td colspan="2"><h2>Typedefs</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">typedef unsigned long </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ctl_plugin___s_d_k.html#gac73a66a3973afb51c4e585177647c693">snd_ctl_ext_key_t</a></td></tr> <tr><td colspan="2"><h2>Enumerations</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">enum </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ctl_plugin___s_d_k.html#gaeedd1d7413b3025e9cede1b27e509de5">snd_ctl_ext_access_t</a> { <br/> <b>SND_CTL_EXT_ACCESS_READ</b> = (1<<0), <b>SND_CTL_EXT_ACCESS_WRITE</b> = (1<<1), <b>SND_CTL_EXT_ACCESS_READWRITE</b> = (3<<0), <b>SND_CTL_EXT_ACCESS_VOLATILE</b> = (1<<2), <br/> <b>SND_CTL_EXT_ACCESS_INACTIVE</b> = (1<<8) <br/> }</td></tr> <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___ctl_plugin___s_d_k.html#ga317775f9c5e239781e71735ca5ba1ca6">snd_ctl_ext_create</a> (snd_ctl_ext_t *ext, const char *name, int mode)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Create an external control plugin instance. <a href="group___ctl_plugin___s_d_k.html#ga317775f9c5e239781e71735ca5ba1ca6"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ctl_plugin___s_d_k.html#ga33fadf68f6414722876f21201214f76e">snd_ctl_ext_delete</a> (snd_ctl_ext_t *ext)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Delete the external control plugin. <a href="group___ctl_plugin___s_d_k.html#ga33fadf68f6414722876f21201214f76e"></a><br/></td></tr> </table> <hr/><a name="_details"></a><h2>Detailed Description</h2> <p>External control plugin SDK. </p> <dl class="author"><dt><b>Author:</b></dt><dd>Takashi Iwai <<a href="mailto:tiwai@suse.de">tiwai@suse.de</a>> </dd></dl> <dl class="date"><dt><b>Date:</b></dt><dd>2005</dd></dl> <p>External control plugin SDK. </p> </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" 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