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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_tf_read_block</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="ch05.html" title="Chapter 5. libata Core Internals" /><link rel="prev" href="re65.html" title="ata_rwcmd_protocol" /><link rel="next" href="re67.html" title="ata_build_rw_tf" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>ata_tf_read_block</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re65.html">Prev</a> </td><th width="60%" align="center">Chapter 5. libata Core Internals</th><td width="20%" align="right"> <a accesskey="n" href="re67.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="ata_tf_read_block"><a id="API-ata-tf-read-block"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ata_tf_read_block —
Read block address from ATA taskfile
</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">u64 <b class="fsfunc">ata_tf_read_block </b>(</code></td><td>struct ata_taskfile * <var class="pdparam">tf</var>, </td></tr><tr><td> </td><td>struct ata_device * <var class="pdparam">dev</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id2869290"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>tf</code></em></span></dt><dd><p>
ATA taskfile of interest
</p></dd><dt><span class="term"><em class="parameter"><code>dev</code></em></span></dt><dd><p>
ATA device <em class="parameter"><code>tf</code></em> belongs to
</p></dd></dl></div></div><div class="refsect1" title="LOCKING"><a id="id2869337"></a><h2>LOCKING</h2><p>
None.
</p><p>
Read block address from <em class="parameter"><code>tf</code></em>. This function can handle all
three address formats - LBA, LBA48 and CHS. tf->protocol and
flags select the address format to use.
</p></div><div class="refsect1" title="RETURNS"><a id="id2869358"></a><h2>RETURNS</h2><p>
Block address read from <em class="parameter"><code>tf</code></em>.
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