1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>irq_chip_compose_msi_msg</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="intfunctions.html" title="Chapter&#160;10.&#160;Internal Functions Provided"><link rel="prev" href="API-irq-chip-set-wake-parent.html" title="irq_chip_set_wake_parent"><link rel="next" href="credits.html" title="Chapter&#160;11.&#160;Credits"></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_chip_compose_msi_msg</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-irq-chip-set-wake-parent.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;10.&#160;Internal Functions Provided</th><td width="20%" align="right">&#160;<a accesskey="n" href="credits.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-irq-chip-compose-msi-msg"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>irq_chip_compose_msi_msg &#8212; 
2     Componse msi message for a irq chip
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_chip_compose_msi_msg </b>(</code></td><td>struct irq_data * <var class="pdparam">data</var>, </td></tr><tr><td>&#160;</td><td>struct msi_msg * <var class="pdparam">msg</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1103445092"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>data</code></em></span></dt><dd><p>
4     Pointer to interrupt specific data
5    </p></dd><dt><span class="term"><em class="parameter"><code>msg</code></em></span></dt><dd><p>
6     Pointer to the MSI message
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1103447676"></a><h2>Description</h2><p>
8   For hierarchical domains we find the first chip in the hierarchy
9   which implements the irq_compose_msi_msg callback. For non
10   hierarchical we use the top level chip.
11</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-irq-chip-set-wake-parent.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="intfunctions.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="credits.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">irq_chip_set_wake_parent</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;Chapter&#160;11.&#160;Credits</td></tr></table></div></body></html>
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