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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>mdelay()/udelay() include/asm/delay.h include/linux/delay.h</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="Unreliable Guide To Hacking The Linux Kernel" /><link rel="up" href="ch06.html" title="Chapter 6. Common Routines" /><link rel="prev" href="ch06s04.html" title="current include/asm/current.h" /><link rel="next" href="ch06s06.html" title="cpu_to_be32()/be32_to_cpu()/cpu_to_le32()/le32_to_cpu() include/asm/byteorder.h" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><code class="function">mdelay()</code>/<code class="function">udelay()</code>
<code class="filename">include/asm/delay.h</code>
<code class="filename">include/linux/delay.h</code>
</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch06s04.html">Prev</a> </td><th width="60%" align="center">Chapter 6. Common Routines</th><td width="20%" align="right"> <a accesskey="n" href="ch06s06.html">Next</a></td></tr></table><hr /></div><div class="sect1" title="mdelay()/udelay() include/asm/delay.h include/linux/delay.h"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="routines-udelay"></a><code class="function">mdelay()</code>/<code class="function">udelay()</code>
<code class="filename">include/asm/delay.h</code>
<code class="filename">include/linux/delay.h</code>
</h2></div></div></div><p>
The <code class="function">udelay()</code> and <code class="function">ndelay()</code> functions can be used for small pauses.
Do not use large values with them as you risk
overflow - the helper function <code class="function">mdelay()</code> is useful
here, or consider <code class="function">msleep()</code>.
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<code class="filename">include/asm/current.h</code> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <code class="function">cpu_to_be32()</code>/<code class="function">be32_to_cpu()</code>/<code class="function">cpu_to_le32()</code>/<code class="function">le32_to_cpu()</code>
<code class="filename">include/asm/byteorder.h</code>
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