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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>Chapter 7. API for AC97 Codec</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="Writing an ALSA Driver" /><link rel="up" href="index.html" title="Writing an ALSA Driver" /><link rel="prev" href="ch06s08.html" title="Metadata" /><link rel="next" href="ch07s02.html" title="Full Code Example" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 7. API for AC97 Codec</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch06s08.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="ch07s02.html">Next</a></td></tr></table><hr /></div><div class="chapter" title="Chapter 7. API for AC97 Codec"><div class="titlepage"><div><div><h2 class="title"><a id="api-ac97"></a>Chapter 7. API for AC97 Codec</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="ch07.html#id2949795">General</a></span></dt><dt><span class="section"><a href="ch07s02.html">Full Code Example</a></span></dt><dt><span class="section"><a href="ch07s03.html">Constructor</a></span></dt><dt><span class="section"><a href="ch07s04.html">Callbacks</a></span></dt><dt><span class="section"><a href="ch07s05.html">Updating Registers in The Driver</a></span></dt><dt><span class="section"><a href="ch07s06.html">Clock Adjustment</a></span></dt><dt><span class="section"><a href="ch07s07.html">Proc Files</a></span></dt><dt><span class="section"><a href="ch07s08.html">Multiple Codecs</a></span></dt></dl></div><div class="section" title="General"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="id2949795"></a>General</h2></div></div></div><p>
The ALSA AC97 codec layer is a well-defined one, and you don't
have to write much code to control it. Only low-level control
routines are necessary. The AC97 codec API is defined in
<code class="filename"><sound/ac97_codec.h></code>.
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