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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>rio_device_has_destid</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="RapidIO Subsystem Guide" /><link rel="up" href="ch04s02.html" title="Enumeration and Discovery" /><link rel="prev" href="re52.html" title="rio_enum_host" /><link rel="next" href="re54.html" title="rio_release_dev" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>rio_device_has_destid</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re52.html">Prev</a> </td><th width="60%" align="center">Enumeration and Discovery</th><td width="20%" align="right"> <a accesskey="n" href="re54.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="rio_device_has_destid"><a id="API-rio-device-has-destid"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>rio_device_has_destid —
Test if a device contains a destination ID register
</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><tr><td><code class="funcdef">int <b class="fsfunc">rio_device_has_destid </b>(</code></td><td>struct rio_mport * <var class="pdparam">port</var>, </td></tr><tr><td> </td><td>int <var class="pdparam">src_ops</var>, </td></tr><tr><td> </td><td>int <var class="pdparam">dst_ops</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id2854004"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>port</code></em></span></dt><dd><p>
Master port to issue transaction
</p></dd><dt><span class="term"><em class="parameter"><code>src_ops</code></em></span></dt><dd><p>
RIO device source operations
</p></dd><dt><span class="term"><em class="parameter"><code>dst_ops</code></em></span></dt><dd><p>
RIO device destination operations
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id2854064"></a><h2>Description</h2><p>
Checks the provided <em class="parameter"><code>src_ops</code></em> and <em class="parameter"><code>dst_ops</code></em> for the necessary transaction
capabilities that indicate whether or not a device will implement a
destination ID register. Returns 1 if true or 0 if false.
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