1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>ccw_device_set_offline</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Writing s390 channel device drivers"><link rel="up" href="ccwdev.html" title="ccw devices"><link rel="prev" href="API-struct-ccw-driver.html" title="struct ccw_driver"><link rel="next" href="API-ccw-device-set-online.html" title="ccw_device_set_online"></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">ccw_device_set_offline</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-struct-ccw-driver.html">Prev</a>&#160;</td><th width="60%" align="center">ccw devices</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-ccw-device-set-online.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-ccw-device-set-offline"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ccw_device_set_offline &#8212; 
2  disable a ccw device for I/O
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">ccw_device_set_offline </b>(</code></td><td>struct ccw_device * <var class="pdparam">cdev</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1124169724"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>cdev</code></em></span></dt><dd><p>
4     target ccw device
5    </p></dd></dl></div></div><div class="refsect1"><a name="idp1124171292"></a><h2>Description</h2><p>
6   This function calls the driver's <code class="function">set_offline</code> function for <em class="parameter"><code>cdev</code></em>, if
7   given, and then disables <em class="parameter"><code>cdev</code></em>.
8</p></div><div class="refsect1"><a name="idp1124172892"></a><h2>Returns</h2><p>
9   <code class="constant">0</code> on success and a negative error value on failure.
10</p></div><div class="refsect1"><a name="idp1124173716"></a><h2>Context</h2><p>
11   enabled, ccw device lock not held
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