1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>ata_unpack_xfermask</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="libATA Developer's Guide"><link rel="up" href="libataExt.html" title="Chapter&#160;4.&#160;libata Library"><link rel="prev" href="API-ata-pack-xfermask.html" title="ata_pack_xfermask"><link rel="next" href="API-ata-xfer-mask2mode.html" title="ata_xfer_mask2mode"></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">ata_unpack_xfermask</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-ata-pack-xfermask.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;4.&#160;libata Library</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-ata-xfer-mask2mode.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-ata-unpack-xfermask"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ata_unpack_xfermask &#8212; 
2     Unpack xfer_mask into pio, mwdma and udma masks
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">void <b class="fsfunc">ata_unpack_xfermask </b>(</code></td><td>unsigned long <var class="pdparam">xfer_mask</var>, </td></tr><tr><td>&#160;</td><td>unsigned long * <var class="pdparam">pio_mask</var>, </td></tr><tr><td>&#160;</td><td>unsigned long * <var class="pdparam">mwdma_mask</var>, </td></tr><tr><td>&#160;</td><td>unsigned long * <var class="pdparam">udma_mask</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1123432460"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>xfer_mask</code></em></span></dt><dd><p>
4     xfer_mask to unpack
5    </p></dd><dt><span class="term"><em class="parameter"><code>pio_mask</code></em></span></dt><dd><p>
6     resulting pio_mask
7    </p></dd><dt><span class="term"><em class="parameter"><code>mwdma_mask</code></em></span></dt><dd><p>
8     resulting mwdma_mask
9    </p></dd><dt><span class="term"><em class="parameter"><code>udma_mask</code></em></span></dt><dd><p>
10     resulting udma_mask
11    </p></dd></dl></div></div><div class="refsect1"><a name="idp1123436924"></a><h2>Description</h2><p>
12   Unpack <em class="parameter"><code>xfer_mask</code></em> into <em class="parameter"><code>pio_mask</code></em>, <em class="parameter"><code>mwdma_mask</code></em> and <em class="parameter"><code>udma_mask</code></em>.
13   Any NULL distination masks will be ignored.
14</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-ata-pack-xfermask.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="libataExt.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-ata-xfer-mask2mode.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">ata_pack_xfermask</span>&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;<span class="phrase">ata_xfer_mask2mode</span></td></tr></table></div></body></html>
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