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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>disable_irq</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="Linux generic IRQ handling" /><link rel="up" href="ch08.html" title="Chapter 8. Public Functions Provided" /><link rel="prev" href="re07.html" title="disable_irq_nosync" /><link rel="next" href="re09.html" title="enable_irq" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>disable_irq</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re07.html">Prev</a> </td><th width="60%" align="center">Chapter 8. Public Functions Provided</th><td width="20%" align="right"> <a accesskey="n" href="re09.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="disable_irq"><a id="API-disable-irq"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>disable_irq —
disable an irq and wait for completion
</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">void <b class="fsfunc">disable_irq </b>(</code></td><td>unsigned int <var class="pdparam">irq</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id2910775"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>irq</code></em></span></dt><dd><p>
Interrupt to disable
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id2910802"></a><h2>Description</h2><p>
Disable the selected interrupt line. Enables and Disables are
nested.
This function waits for any pending IRQ handlers for this interrupt
to complete before returning. If you use this function while
holding a resource the IRQ handler may need you will deadlock.
</p><p>
This function may be called - with care - from IRQ context.
</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re07.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch08.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re09.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>disable_irq_nosync</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>enable_irq</span></td></tr></table></div></body></html>
