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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_host_start</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="ch04.html" title="Chapter 4. libata Library" /><link rel="prev" href="re52.html" title="ata_slave_link_init" /><link rel="next" href="re54.html" title="ata_host_init" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>ata_host_start</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re52.html">Prev</a> </td><th width="60%" align="center">Chapter 4. libata Library</th><td width="20%" align="right"> <a accesskey="n" href="re54.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="ata_host_start"><a id="API-ata-host-start"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ata_host_start —
start and freeze ports of an ATA host
</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_host_start </b>(</code></td><td>struct ata_host * <var class="pdparam">host</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id2900163"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>host</code></em></span></dt><dd><p>
ATA host to start ports for
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id2900189"></a><h2>Description</h2><p>
Start and then freeze ports of <em class="parameter"><code>host</code></em>. Started status is
recorded in host->flags, so this function can be called
multiple times. Ports are guaranteed to get started only
once. If host->ops isn't initialized yet, its set to the
first non-dummy port ops.
</p></div><div class="refsect1" title="LOCKING"><a id="id2900211"></a><h2>LOCKING</h2><p>
Inherited from calling layer (may sleep).
</p></div><div class="refsect1" title="RETURNS"><a id="id2900222"></a><h2>RETURNS</h2><p>
0 if all ports are started successfully, -errno otherwise.
</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re52.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch04.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re54.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>ata_slave_link_init</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>ata_host_init</span></td></tr></table></div></body></html>
