1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>usb_create_shared_hcd</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="The Linux-USB Host Side API"><link rel="up" href="hcd.html" title="Chapter&#160;6.&#160;Host Controller APIs"><link rel="prev" href="API-usb-hc-died.html" title="usb_hc_died"><link rel="next" href="API-usb-create-hcd.html" title="usb_create_hcd"></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">usb_create_shared_hcd</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-usb-hc-died.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;6.&#160;Host Controller APIs</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-usb-create-hcd.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-usb-create-shared-hcd"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>usb_create_shared_hcd &#8212; 
2     create and initialize an HCD structure
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 usb_hcd * <b class="fsfunc">usb_create_shared_hcd </b>(</code></td><td>const struct hc_driver * <var class="pdparam">driver</var>, </td></tr><tr><td>&#160;</td><td>struct device * <var class="pdparam">dev</var>, </td></tr><tr><td>&#160;</td><td>const char * <var class="pdparam">bus_name</var>, </td></tr><tr><td>&#160;</td><td>struct usb_hcd * <var class="pdparam">primary_hcd</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1116835348"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>driver</code></em></span></dt><dd><p>
4     HC driver that will use this hcd
5    </p></dd><dt><span class="term"><em class="parameter"><code>dev</code></em></span></dt><dd><p>
6     device for this HC, stored in hcd-&gt;self.controller
7    </p></dd><dt><span class="term"><em class="parameter"><code>bus_name</code></em></span></dt><dd><p>
8     value to store in hcd-&gt;self.bus_name
9    </p></dd><dt><span class="term"><em class="parameter"><code>primary_hcd</code></em></span></dt><dd><p>
10     a pointer to the usb_hcd structure that is sharing the
11     PCI device.  Only allocate certain resources for the primary HCD
12    </p></dd></dl></div></div><div class="refsect1"><a name="idp1116840204"></a><h2>Context</h2><p>
13   !<code class="function">in_interrupt</code>
14</p></div><div class="refsect1"><a name="idp1116841164"></a><h2>Description</h2><p>
15   Allocate a struct usb_hcd, with extra space at the end for the
16   HC driver's private data.  Initialize the generic members of the
17   hcd structure.
18</p></div><div class="refsect1"><a name="idp1116841916"></a><h2>Return</h2><p>
19   On success, a pointer to the created and initialized HCD structure.
20   On failure (e.g. if memory is unavailable), <code class="constant">NULL</code>.
21</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-usb-hc-died.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="hcd.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-usb-create-hcd.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">usb_hc_died</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">usb_create_hcd</span></td></tr></table></div></body></html>
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