1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>airq_iv_scan</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="genericinterfaces.html" title="Chapter&#160;4.&#160;Generic interfaces"><link rel="prev" href="API-airq-iv-free.html" title="airq_iv_free"></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">airq_iv_scan</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-airq-iv-free.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;4.&#160;Generic interfaces</th><td width="20%" align="right">&#160;</td></tr></table><hr></div><div class="refentry"><a name="API-airq-iv-scan"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>airq_iv_scan &#8212; 
2     scan interrupt vector for non-zero bits
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">unsigned long <b class="fsfunc">airq_iv_scan </b>(</code></td><td>struct airq_iv * <var class="pdparam">iv</var>, </td></tr><tr><td>&#160;</td><td>unsigned long <var class="pdparam">start</var>, </td></tr><tr><td>&#160;</td><td>unsigned long <var class="pdparam">end</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1124636860"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>iv</code></em></span></dt><dd><p>
4     pointer to interrupt vector structure
5    </p></dd><dt><span class="term"><em class="parameter"><code>start</code></em></span></dt><dd><p>
6     bit number to start the search
7    </p></dd><dt><span class="term"><em class="parameter"><code>end</code></em></span></dt><dd><p>
8     bit number to end the search
9    </p></dd></dl></div></div><div class="refsect1"><a name="idp1124640444"></a><h2>Description</h2><p>
10   Returns the bit number of the next non-zero interrupt bit, or
11   -1UL if the scan completed without finding any more any non-zero bits.
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