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<title>ALSA project - the C library reference: /home/qateam/rpm/BUILD/alsa-lib-1.0.23/include/control_external.h File Reference</title>
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<h1>/home/qateam/rpm/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>
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