Sophie: kernel-doc-3.11.10-100.fc18 noarch

kernel-doc-3.11.10-100.fc18.noarch.rpm

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<!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/html; charset=ANSI_X3.4-1968" /><title>snd_lookup_minor_data</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /><link rel="home" href="index.html" title="The ALSA Driver API" /><link rel="up" href="ch01s03.html" title="Module requests and Device File Entries" /><link rel="prev" href="API-snd-request-card.html" title="snd_request_card" /><link rel="next" href="API-snd-register-device-for-dev.html" title="snd_register_device_for_dev" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">snd_lookup_minor_data</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-snd-request-card.html">Prev</a>&#160;</td><th width="60%" align="center">Module requests and Device File Entries</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-snd-register-device-for-dev.html">Next</a></td></tr></table><hr /></div><div class="refentry"><a id="API-snd-lookup-minor-data"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>snd_lookup_minor_data &#8212; 
     get user data of a registered device
 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">void * <strong class="fsfunc">snd_lookup_minor_data </strong>(</code></td><td>unsigned int <var class="pdparam">minor</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">type</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a id="idm140249671252624"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>minor</code></em></span></dt><dd><p>
     the minor number
    </p></dd><dt><span class="term"><em class="parameter"><code>type</code></em></span></dt><dd><p>
     device type (SNDRV_DEVICE_TYPE_XXX)
    </p></dd></dl></div></div><div class="refsect1"><a id="idm140249671247664"></a><h2>Description</h2><p>
   Checks that a minor device with the specified type is registered, and returns
   its user data pointer.
   </p><p>

   This function increments the reference counter of the card instance
   if an associated instance with the given minor number and type is found.
   The caller must call <code class="function">snd_card_unref</code> appropriately later.
</p></div><div class="refsect1"><a id="idm140249671245312"></a><h2>Return</h2><p>
   The user data pointer if the specified device is found. <code class="constant">NULL</code>
   otherwise.
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