1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>irq_set_affinity_notifier</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="The Linux Kernel API"><link rel="up" href="hardware.html#idp1125715868" title="Interrupt Handling"><link rel="prev" href="API-synchronize-irq.html" title="synchronize_irq"><link rel="next" href="API-disable-irq-nosync.html" title="disable_irq_nosync"></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_notifier</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-synchronize-irq.html">Prev</a>&#160;</td><th width="60%" align="center">Interrupt Handling</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-disable-irq-nosync.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-irq-set-affinity-notifier"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>irq_set_affinity_notifier &#8212; 
2     control notification of IRQ affinity changes
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_notifier </b>(</code></td><td>unsigned int <var class="pdparam">irq</var>, </td></tr><tr><td>&#160;</td><td>struct irq_affinity_notify * <var class="pdparam">notify</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1125737188"></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 for which to enable/disable notification
5    </p></dd><dt><span class="term"><em class="parameter"><code>notify</code></em></span></dt><dd><p>
6     Context for notification, or <code class="constant">NULL</code> to disable
7     notification.  Function pointers must be initialised;
8     the other fields will be initialised by this function.
9    </p></dd></dl></div></div><div class="refsect1"><a name="idp1125740196"></a><h2>Description</h2><p>
10   Must be called in process context.  Notification may only be enabled
11   after the IRQ is allocated and must be disabled before the IRQ is
12   freed using <code class="function">free_irq</code>.
13</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-synchronize-irq.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="hardware.html#idp1125715868">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-disable-irq-nosync.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">synchronize_irq</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">disable_irq_nosync</span></td></tr></table></div></body></html>
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