1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>ata_scsi_qc_new</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="libataScsiInt.html" title="Chapter&#160;6.&#160;libata SCSI translation/emulation"><link rel="prev" href="API-ata-task-ioctl.html" title="ata_task_ioctl"><link rel="next" href="API-ata-dump-status.html" title="ata_dump_status"></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_scsi_qc_new</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-ata-task-ioctl.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;6.&#160;libata SCSI translation/emulation</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-ata-dump-status.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-ata-scsi-qc-new"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ata_scsi_qc_new &#8212; 
2     acquire new ata_queued_cmd reference
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">struct ata_queued_cmd * <b class="fsfunc">ata_scsi_qc_new </b>(</code></td><td>struct ata_device * <var class="pdparam">dev</var>, </td></tr><tr><td>&#160;</td><td>struct scsi_cmnd * <var class="pdparam">cmd</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1124563324"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>dev</code></em></span></dt><dd><p>
4     ATA device to which the new command is attached
5    </p></dd><dt><span class="term"><em class="parameter"><code>cmd</code></em></span></dt><dd><p>
6     SCSI command that originated this ATA command
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1124565980"></a><h2>Description</h2><p>
8   Obtain a reference to an unused ata_queued_cmd structure,
9   which is the basic libata structure representing a single
10   ATA command sent to the hardware.
11   </p><p>
12
13   If a command was available, fill in the SCSI-specific
14   portions of the structure with information on the
15   current command.
16</p></div><div class="refsect1"><a name="idp1124567012"></a><h2>LOCKING</h2><p>
17   spin_lock_irqsave(host lock)
18</p></div><div class="refsect1"><a name="idp1124567644"></a><h2>RETURNS</h2><p>
19   Command allocated, or <code class="constant">NULL</code> if none available.
20</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-task-ioctl.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="libataScsiInt.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-ata-dump-status.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">ata_task_ioctl</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_dump_status</span></td></tr></table></div></body></html>
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