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<h1>snd_ctl_ext_t Struct Reference<br/>
<small>
[<a class="el" href="group___ctl_plugin___s_d_k.html">External Control Plugin SDK</a>]</small>
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<tr><td colspan="2"><h2>Data Fields</h2></td></tr>
<tr><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><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><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><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><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><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><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><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><td class="memItemLeft" align="right" valign="top">const snd_ctl_ext_callback_t * </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__ctl__ext.html#a24823fabe7534fdc7ebf0a12461ba9fc">callback</a></td></tr>
<tr><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><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><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><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>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>Handle of control ext</p>
<p>External control plugin handle </p>
<hr/><h2>Field Documentation</h2>
<a class="anchor" id="a24823fabe7534fdc7ebf0a12461ba9fc"></a><!-- doxytag: member="snd_ctl_ext::callback" ref="a24823fabe7534fdc7ebf0a12461ba9fc" args="" -->
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<td class="memname">const snd_ctl_ext_callback_t* snd_ctl_ext_t::callback</td>
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<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>
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<a class="anchor" id="ac922ab575590b3d179ee439c0891d952"></a><!-- doxytag: member="snd_ctl_ext::card_idx" ref="ac922ab575590b3d179ee439c0891d952" args="" -->
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<td class="memname">int snd_ctl_ext_t::card_idx</td>
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<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>
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<a class="anchor" id="ae170b3a14d45d3bb830a91773bb832f4"></a><!-- doxytag: member="snd_ctl_ext::driver" ref="ae170b3a14d45d3bb830a91773bb832f4" args="[16]" -->
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<td class="memname">char snd_ctl_ext_t::driver[16]</td>
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<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>
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<a class="anchor" id="af014c69147bee94eaddca82d6916326f"></a><!-- doxytag: member="snd_ctl_ext::handle" ref="af014c69147bee94eaddca82d6916326f" args="" -->
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<td class="memname"><a class="el" href="group___control.html#ga06628f38def84a0fe3da74041db9d51f">snd_ctl_t</a>* snd_ctl_ext_t::handle</td>
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<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>
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<a class="anchor" id="a378f125e90ce9a0f20823c056d638263"></a><!-- doxytag: member="snd_ctl_ext::id" ref="a378f125e90ce9a0f20823c056d638263" args="[16]" -->
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<td class="memname">char snd_ctl_ext_t::id[16]</td>
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<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>
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<a class="anchor" id="a3863dfbb46d66f4cd43d93d42d58e393"></a><!-- doxytag: member="snd_ctl_ext::longname" ref="a3863dfbb46d66f4cd43d93d42d58e393" args="[80]" -->
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<td class="memname">char snd_ctl_ext_t::longname[80]</td>
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<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>
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<a class="anchor" id="a44e14783e538144eac71a6df139989b5"></a><!-- doxytag: member="snd_ctl_ext::mixername" ref="a44e14783e538144eac71a6df139989b5" args="[80]" -->
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<td class="memname">char snd_ctl_ext_t::mixername[80]</td>
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<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>
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<a class="anchor" id="a186de36995e8f5d879fcf3abea5aeff2"></a><!-- doxytag: member="snd_ctl_ext::name" ref="a186de36995e8f5d879fcf3abea5aeff2" args="[32]" -->
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<td class="memname">char snd_ctl_ext_t::name[32]</td>
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<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>
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<a class="anchor" id="a3688ec45a9f38ba73c1ae9058414b033"></a><!-- doxytag: member="snd_ctl_ext::nonblock" ref="a3688ec45a9f38ba73c1ae9058414b033" args="" -->
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<td class="memname">int snd_ctl_ext_t::nonblock</td>
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<p>non-block mode; read-only </p>
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<a class="anchor" id="a1b3bab17945ce89342aae1928bd33657"></a><!-- doxytag: member="snd_ctl_ext::poll_fd" ref="a1b3bab17945ce89342aae1928bd33657" args="" -->
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<td class="memname">int snd_ctl_ext_t::poll_fd</td>
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<p>poll descriptor </p>
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<a class="anchor" id="abae840f5d02c49540b23b23285248d2b"></a><!-- doxytag: member="snd_ctl_ext::private_data" ref="abae840f5d02c49540b23b23285248d2b" args="" -->
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<td class="memname">void* snd_ctl_ext_t::private_data</td>
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<p>private data, which can be used freely in the driver callbacks </p>
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<a class="anchor" id="a3a07d58cb46680c6cb9023dbf72e3120"></a><!-- doxytag: member="snd_ctl_ext::subscribed" ref="a3a07d58cb46680c6cb9023dbf72e3120" args="" -->
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<td class="memname">int snd_ctl_ext_t::subscribed</td>
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<p>events subscribed; read-only </p>
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<a class="anchor" id="af3599d3baa6b5ceadecbfbd74b8b773f"></a><!-- doxytag: member="snd_ctl_ext::version" ref="af3599d3baa6b5ceadecbfbd74b8b773f" args="" -->
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<td class="memname">unsigned int snd_ctl_ext_t::version</td>
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<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>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>/home/qateam/rpm/BUILD/alsa-lib-1.0.23/include/<a class="el" href="control__external_8h_source.html">control_external.h</a></li>
</ul>
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