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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>drivers directory</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="ch01.html" title="Chapter 1. File Tree Structure" /><link rel="prev" href="ch01s03.html" title="include directory" /><link rel="next" href="ch01s05.html" title="i2c directory" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">drivers directory</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch01s03.html">Prev</a> </td><th width="60%" align="center">Chapter 1. File Tree Structure</th><td width="20%" align="right"> <a accesskey="n" href="ch01s05.html">Next</a></td></tr></table><hr /></div><div class="section" title="drivers directory"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="file-tree-drivers-directory"></a>drivers directory</h2></div></div></div><div class="toc"><dl><dt><span class="section"><a href="ch01s04.html#file-tree-drivers-directory-mpu401">drivers/mpu401</a></span></dt><dt><span class="section"><a href="ch01s04.html#file-tree-drivers-directory-opl3">drivers/opl3 and opl4</a></span></dt></dl></div><p>
This directory contains code shared among different drivers
on different architectures. They are hence supposed not to be
architecture-specific.
For example, the dummy pcm driver and the serial MIDI
driver are found in this directory. In the sub-directories,
there is code for components which are independent from
bus and cpu architectures.
</p><div class="section" title="drivers/mpu401"><div class="titlepage"><div><div><h3 class="title"><a id="file-tree-drivers-directory-mpu401"></a>drivers/mpu401</h3></div></div></div><p>
The MPU401 and MPU401-UART modules are stored here.
</p></div><div class="section" title="drivers/opl3 and opl4"><div class="titlepage"><div><div><h3 class="title"><a id="file-tree-drivers-directory-opl3"></a>drivers/opl3 and opl4</h3></div></div></div><p>
The OPL3 and OPL4 FM-synth stuff is found here.
</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch01s03.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch01.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ch01s05.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">include directory </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> i2c directory</td></tr></table></div></body></html>
