1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>Clock Adjustment</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="api-ac97.html" title="Chapter 7. API for AC97 Codec"><link rel="prev" href="api-ac97-updating-registers.html" title="Updating Registers in The Driver"><link rel="next" href="api-ac97-proc-files.html" title="Proc Files"></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">Clock Adjustment</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="api-ac97-updating-registers.html">Prev</a> </td><th width="60%" align="center">Chapter 7. API for AC97 Codec</th><td width="20%" align="right"> <a accesskey="n" href="api-ac97-proc-files.html">Next</a></td></tr></table><hr></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="api-ac97-clock-adjustment"></a>Clock Adjustment</h2></div></div></div><p> 2 In some chips, the clock of the codec isn't 48000 but using a 3 PCI clock (to save a quartz!). In this case, change the field 4 bus->clock to the corresponding 5 value. For example, intel8x0 6 and es1968 drivers have their own function to read from the clock. 7 </p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="api-ac97-updating-registers.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="api-ac97.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="api-ac97-proc-files.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Updating Registers in The Driver </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Proc Files</td></tr></table></div></body></html> 8