1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>parport_find_number</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Device Drivers"><link rel="up" href="parportdev.html" title="Chapter&#160;3.&#160;Parallel Port Devices"><link rel="prev" href="API-parport-unregister-device.html" title="parport_unregister_device"><link rel="next" href="API-parport-find-base.html" title="parport_find_base"></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">parport_find_number</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-parport-unregister-device.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;3.&#160;Parallel Port Devices</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-parport-find-base.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-parport-find-number"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>parport_find_number &#8212; 
2     find a parallel port by number
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 parport * <b class="fsfunc">parport_find_number </b>(</code></td><td>int <var class="pdparam">number</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1111076060"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>number</code></em></span></dt><dd><p>
4     parallel port number
5    </p></dd></dl></div></div><div class="refsect1"><a name="idp1111077676"></a><h2>Description</h2><p>
6   This returns the parallel port with the specified number, or
7   <code class="constant">NULL</code> if there is none.
8   </p><p>
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10   There is an implicit <code class="function">parport_get_port</code> done already; to throw
11   away the reference to the port that <code class="function">parport_find_number</code>
12   gives you, use <code class="function">parport_put_port</code>.
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