1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>usb_gadget_unregister_driver</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="USB Gadget API for Linux"><link rel="up" href="core.html" title="Core Objects and Methods"><link rel="prev" href="API-usb-gadget-probe-driver.html" title="usb_gadget_probe_driver"><link rel="next" href="API-struct-usb-string.html" title="struct usb_string"></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_gadget_unregister_driver</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-usb-gadget-probe-driver.html">Prev</a>&#160;</td><th width="60%" align="center">Core Objects and Methods</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-struct-usb-string.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-usb-gadget-unregister-driver"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>usb_gadget_unregister_driver &#8212; 
2     unregister a gadget driver
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">int <b class="fsfunc">usb_gadget_unregister_driver </b>(</code></td><td>struct usb_gadget_driver * <var class="pdparam">driver</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1124215308"></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     the driver being unregistered
5    </p></dd></dl></div></div><div class="refsect1"><a name="idp1124216884"></a><h2>Context</h2><p>
6   can sleep
7</p></div><div class="refsect1"><a name="idp1124217460"></a><h2>Description</h2><p>
8   Call this in your gadget driver's module cleanup function,
9   to tell the underlying usb controller that your driver is
10   going away.  If the controller is connected to a USB host,
11   it will first <code class="function">disconnect</code>.  The driver is also requested
12   to <code class="function">unbind</code> and clean up any device state, before this procedure
13   finally returns.  It's expected that the <code class="function">unbind</code> functions
14   will in in exit sections, so may not be linked in some kernels.
15</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-gadget-probe-driver.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="core.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-struct-usb-string.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">usb_gadget_probe_driver</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">struct usb_string</span></td></tr></table></div></body></html>
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