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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 with Several Source Files</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="ch15.html" title="Chapter 15. How To Put Your Driver Into ALSA Tree" /><link rel="prev" href="ch15s02.html" title="Driver with A Single Source File" /><link rel="next" href="ch16.html" title="Chapter 16. Useful Functions" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Drivers with Several Source Files</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch15s02.html">Prev</a> </td><th width="60%" align="center">Chapter 15. How To Put Your Driver Into ALSA Tree</th><td width="20%" align="right"> <a accesskey="n" href="ch16.html">Next</a></td></tr></table><hr /></div><div class="section" title="Drivers with Several Source Files"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="id2743002"></a>Drivers with Several Source Files</h2></div></div></div><p>
Suppose that the driver snd-xyz have several source files.
They are located in the new subdirectory,
pci/xyz.
</p><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><p>
Add a new directory (<code class="filename">xyz</code>) in
<code class="filename">alsa-driver/pci/Makefile</code> as below
</p><div class="informalexample"><pre class="programlisting">
obj-$(CONFIG_SND) += xyz/
</pre></div><p>
</p></li><li class="listitem"><p>
Under the directory <code class="filename">xyz</code>, create a Makefile
</p><div class="example"><a id="id2743055"></a><p class="title"><b>Example 15.1. Sample Makefile for a driver xyz</b></p><div class="example-contents"><pre class="programlisting">
ifndef SND_TOPDIR
SND_TOPDIR=../..
endif
include $(SND_TOPDIR)/toplevel.config
include $(SND_TOPDIR)/Makefile.conf
snd-xyz-objs := xyz.o abc.o def.o
obj-$(CONFIG_SND_XYZ) += snd-xyz.o
include $(SND_TOPDIR)/Rules.make
</pre></div></div><p><br class="example-break" />
</p></li><li class="listitem"><p>
Create the Kconfig entry
</p><p>
This procedure is as same as in the last section.
</p></li><li class="listitem"><p>
Run cvscompile script to re-generate the configure script and
build the whole stuff again.
</p></li></ol></div><p>
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