1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>scsicam_bios_param</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="SCSI Interfaces Guide"><link rel="up" href="mid_layer.html#scsicam.c" title="drivers/scsi/scsicam.c"><link rel="prev" href="API-scsi-bios-ptable.html" title="scsi_bios_ptable"><link rel="next" href="API-scsi-partsize.html" title="scsi_partsize"></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"><span class="phrase">scsicam_bios_param</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-scsi-bios-ptable.html">Prev</a>&#160;</td><th width="60%" align="center">drivers/scsi/scsicam.c</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-scsi-partsize.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-scsicam-bios-param"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>scsicam_bios_param &#8212; 
2     Determine geometry of a disk in cylinders/heads/sectors.
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">scsicam_bios_param </b>(</code></td><td>struct block_device * <var class="pdparam">bdev</var>, </td></tr><tr><td>&#160;</td><td>sector_t <var class="pdparam">capacity</var>, </td></tr><tr><td>&#160;</td><td>int * <var class="pdparam">ip</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1123636980"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>bdev</code></em></span></dt><dd><p>
4     which device
5    </p></dd><dt><span class="term"><em class="parameter"><code>capacity</code></em></span></dt><dd><p>
6     size of the disk in sectors
7    </p></dd><dt><span class="term"><em class="parameter"><code>ip</code></em></span></dt><dd><p>
8     return value: ip[0]=heads, ip[1]=sectors, ip[2]=cylinders
9    </p></dd></dl></div></div><div class="refsect1"><a name="idp1123640540"></a><h2>Description </h2><p>
10   determine the BIOS mapping/geometry used for a drive in a
11   SCSI-CAM system, storing the results in ip as required
12   by the HDIO_GETGEO <code class="function">ioctl</code>.
13</p></div><div class="refsect1"><a name="idp1123641580"></a><h2>Returns </h2><p>
14   -1 on failure, 0 on success.
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