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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>ata_std_bios_param</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="libATA Developer's Guide" /><link rel="up" href="ch06.html" title="Chapter 6. libata SCSI translation/emulation" /><link rel="prev" href="ch06.html" title="Chapter 6. libata SCSI translation/emulation" /><link rel="next" href="re113.html" title="ata_scsi_slave_config" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>ata_std_bios_param</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch06.html">Prev</a> </td><th width="60%" align="center">Chapter 6. libata SCSI translation/emulation</th><td width="20%" align="right"> <a accesskey="n" href="re113.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="ata_std_bios_param"><a id="API-ata-std-bios-param"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ata_std_bios_param —
generic bios head/sector/cylinder calculator used by sd.
</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><tr><td><code class="funcdef">int <b class="fsfunc">ata_std_bios_param </b>(</code></td><td>struct scsi_device * <var class="pdparam">sdev</var>, </td></tr><tr><td> </td><td>struct block_device * <var class="pdparam">bdev</var>, </td></tr><tr><td> </td><td>sector_t <var class="pdparam">capacity</var>, </td></tr><tr><td> </td><td>int <var class="pdparam">geom[]</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id2909468"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>sdev</code></em></span></dt><dd><p>
SCSI device for which BIOS geometry is to be determined
</p></dd><dt><span class="term"><em class="parameter"><code>bdev</code></em></span></dt><dd><p>
block device associated with <em class="parameter"><code>sdev</code></em>
</p></dd><dt><span class="term"><em class="parameter"><code>capacity</code></em></span></dt><dd><p>
capacity of SCSI device
</p></dd><dt><span class="term"><em class="parameter"><code>geom[]</code></em></span></dt><dd><p>
location to which geometry will be output
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id2909553"></a><h2>Description</h2><p>
Generic bios head/sector/cylinder calculator
used by sd. Most BIOSes nowadays expect a XXX/255/16 (CHS)
mapping. Some situations may arise where the disk is not
bootable if this is not used.
</p></div><div class="refsect1" title="LOCKING"><a id="id2909566"></a><h2>LOCKING</h2><p>
Defined by the SCSI layer. We don't really care.
</p></div><div class="refsect1" title="RETURNS"><a id="id2909577"></a><h2>RETURNS</h2><p>
Zero.
</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch06.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch06.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re113.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 6. libata SCSI translation/emulation </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>ata_scsi_slave_config</span></td></tr></table></div></body></html>
