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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>snd_device_free</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="The ALSA Driver API" /><link rel="up" href="ch01s02.html" title="Device Components" /><link rel="prev" href="re09.html" title="snd_device_new" /><link rel="next" href="re11.html" title="snd_device_register" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>snd_device_free</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re09.html">Prev</a> </td><th width="60%" align="center">Device Components</th><td width="20%" align="right"> <a accesskey="n" href="re11.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="snd_device_free"><a id="API-snd-device-free"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>snd_device_free —
release the device from the card
</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><tr><td><code class="funcdef">int <b class="fsfunc">snd_device_free </b>(</code></td><td>struct snd_card * <var class="pdparam">card</var>, </td></tr><tr><td> </td><td>void * <var class="pdparam">device_data</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id2704210"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>card</code></em></span></dt><dd><p>
the card instance
</p></dd><dt><span class="term"><em class="parameter"><code>device_data</code></em></span></dt><dd><p>
the data pointer to release
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id2704253"></a><h2>Description</h2><p>
Removes the device from the list on the card and invokes the
callbacks, dev_disconnect and dev_free, corresponding to the state.
Then release the device.
</p><p>
Returns zero if successful, or a negative error code on failure or if the
device not found.
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