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<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>Chapter 19. Device Tapset</title><meta name="generator" content="DocBook XSL Stylesheets V1.69.1"><link rel="start" href="index.html" title="SystemTap Tapset Reference Manual"><link rel="up" href="index.html" title="SystemTap Tapset Reference Manual"><link rel="prev" href="re393.html" title="function::returnval"><link rel="next" href="re394.html" title="function::MAJOR"></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">Chapter 19. Device Tapset</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re393.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="re394.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="dev.stp"></a>Chapter 19. Device Tapset</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="refentrytitle"><a href="re394.html"><span>function::MAJOR</span></a></span><span class="refpurpose"> -
Extract major device number from a kernel device number (kdev_t)
</span></dt><dt><span class="refentrytitle"><a href="re395.html"><span>function::MINOR</span></a></span><span class="refpurpose"> -
Extract minor device number from a kernel device number (kdev_t)
</span></dt><dt><span class="refentrytitle"><a href="re396.html"><span>function::MKDEV</span></a></span><span class="refpurpose"> -
Creates a value that can be compared to a kernel device number (kdev_t)
</span></dt><dt><span class="refentrytitle"><a href="re397.html"><span>function::usrdev2kerndev</span></a></span><span class="refpurpose"> -
Converts a user-space device number into the format used in the kernel
</span></dt></dl></div><p>
This set of functions is used to handle kernel and userspace device numbers.
It contains the following functions:
</p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re393.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="re394.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>function::returnval</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>function::MAJOR</span></td></tr></table></div></body></html>