1<html><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 V1.78.1"><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="control-interface-tlv.html" title="Metadata"><link rel="next" href="api-ac97-example.html" title="Full Code Example"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><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="control-interface-tlv.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="api-ac97-example.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="api-ac97"></a>Chapter 7. API for AC97 Codec</h1></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl class="toc"><dt><span class="section"><a href="api-ac97.html#idp1094227412">General</a></span></dt><dt><span class="section"><a href="api-ac97-example.html">Full Code Example</a></span></dt><dt><span class="section"><a href="api-ac97-constructor.html">Constructor</a></span></dt><dt><span class="section"><a href="api-ac97-callbacks.html">Callbacks</a></span></dt><dt><span class="section"><a href="api-ac97-updating-registers.html">Updating Registers in The Driver</a></span></dt><dt><span class="section"><a href="api-ac97-clock-adjustment.html">Clock Adjustment</a></span></dt><dt><span class="section"><a href="api-ac97-proc-files.html">Proc Files</a></span></dt><dt><span class="section"><a href="api-ac97-multiple-codecs.html">Multiple Codecs</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="idp1094227412"></a>General</h2></div></div></div><p> 2 The ALSA AC97 codec layer is a well-defined one, and you don't 3 have to write much code to control it. Only low-level control 4 routines are necessary. The AC97 codec API is defined in 5 <code class="filename"><sound/ac97_codec.h></code>. 6 </p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="control-interface-tlv.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="api-ac97-example.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Metadata </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Full Code Example</td></tr></table></div></body></html> 7