1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>irq_set_affinity</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux generic IRQ handling"><link rel="up" href="structs.html" title="Chapter&#160;8.&#160;Structures"><link rel="prev" href="API-struct-irq-affinity-notify.html" title="struct irq_affinity_notify"><link rel="next" href="API-irq-force-affinity.html" title="irq_force_affinity"></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">irq_set_affinity</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-struct-irq-affinity-notify.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;8.&#160;Structures</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-irq-force-affinity.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-irq-set-affinity"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>irq_set_affinity &#8212; 
2     Set the irq affinity of a given irq
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">irq_set_affinity </b>(</code></td><td>unsigned int <var class="pdparam">irq</var>, </td></tr><tr><td>&#160;</td><td>const struct cpumask * <var class="pdparam">cpumask</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1103072412"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>irq</code></em></span></dt><dd><p>
4     Interrupt to set affinity
5    </p></dd><dt><span class="term"><em class="parameter"><code>cpumask</code></em></span></dt><dd><p>
6     cpumask
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1103074940"></a><h2>Description</h2><p>
8   Fails if cpumask does not contain an online CPU
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