1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>uart_handle_dcd_change</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="uart16x50.html" title="Chapter&#160;6.&#160;16x50 UART Driver"><link rel="prev" href="API-uart-remove-one-port.html" title="uart_remove_one_port"><link rel="next" href="API-uart-handle-cts-change.html" title="uart_handle_cts_change"></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">uart_handle_dcd_change</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-uart-remove-one-port.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;6.&#160;16x50 UART Driver</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-uart-handle-cts-change.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-uart-handle-dcd-change"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>uart_handle_dcd_change &#8212; 
2     handle a change of carrier detect state
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">uart_handle_dcd_change </b>(</code></td><td>struct uart_port * <var class="pdparam">uport</var>, </td></tr><tr><td>&#160;</td><td>unsigned int <var class="pdparam">status</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1113882916"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>uport</code></em></span></dt><dd><p>
4     uart_port structure for the open port
5    </p></dd><dt><span class="term"><em class="parameter"><code>status</code></em></span></dt><dd><p>
6     new carrier detect status, nonzero if active
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1113885596"></a><h2>Description</h2><p>
8   Caller must hold uport-&gt;lock
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