1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>usb_deregister_dev</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="usbcore.html" title="Chapter&#160;5.&#160;USB Core APIs"><link rel="prev" href="API-usb-register-dev.html" title="usb_register_dev"><link rel="next" href="API-usb-driver-claim-interface.html" title="usb_driver_claim_interface"></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_deregister_dev</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-usb-register-dev.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;5.&#160;USB Core APIs</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-usb-driver-claim-interface.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-usb-deregister-dev"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>usb_deregister_dev &#8212; 
2     deregister a USB device's dynamic minor.
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">void <b class="fsfunc">usb_deregister_dev </b>(</code></td><td>struct usb_interface * <var class="pdparam">intf</var>, </td></tr><tr><td>&#160;</td><td>struct usb_class_driver * <var class="pdparam">class_driver</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1116309500"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>intf</code></em></span></dt><dd><p>
4     pointer to the usb_interface that is being deregistered
5    </p></dd><dt><span class="term"><em class="parameter"><code>class_driver</code></em></span></dt><dd><p>
6     pointer to the usb_class_driver for this device
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1116312116"></a><h2>Description</h2><p>
8   Used in conjunction with <code class="function">usb_register_dev</code>.  This function is called
9   when the USB driver is finished with the minor numbers gotten from a
10   call to <code class="function">usb_register_dev</code> (usually when the device is disconnected
11   from the system.)
12   </p><p>
13
14   This function also removes the usb class device from the sysfs tree.
15   </p><p>
16
17   This should be called by all drivers that use the USB major number.
18</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-register-dev.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="usbcore.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-usb-driver-claim-interface.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">usb_register_dev</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_driver_claim_interface</span></td></tr></table></div></body></html>
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