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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>Chapter 3. The ccwgroup bus</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="Writing s390 channel device drivers" /><link rel="up" href="index.html" title="Writing s390 channel device drivers" /><link rel="prev" href="re43.html" title="cmf_readall" /><link rel="next" href="re44.html" title="struct ccwgroup_device" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 3. The ccwgroup bus</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re43.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="re44.html">Next</a></td></tr></table><hr /></div><div class="chapter" title="Chapter 3. The ccwgroup bus"><div class="titlepage"><div><div><h2 class="title"><a id="ccwgroup"></a>Chapter 3. The ccwgroup bus</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="sect1"><a href="ch03.html#ccwgroupdevices">ccw group devices</a></span></dt></dl></div><p>
The ccwgroup bus only contains artificial devices, created by the user.
Many networking devices (e.g. qeth) are in fact composed of several
ccw devices (like read, write and data channel for qeth). The
ccwgroup bus provides a mechanism to create a meta-device which
contains those ccw devices as slave devices and can be associated
with the netdevice.
</p><div class="sect1" title="ccw group devices"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ccwgroupdevices"></a>ccw group devices</h2></div></div></div><div class="toc"><dl><dt><span class="refentrytitle"><a href="re44.html"><span>struct ccwgroup_device</span></a></span><span class="refpurpose"> —
ccw group device
</span></dt><dt><span class="refentrytitle"><a href="re45.html"><span>struct ccwgroup_driver</span></a></span><span class="refpurpose"> —
driver for ccw group devices
</span></dt><dt><span class="refentrytitle"><a href="re46.html"><span>ccwgroup_create_from_string</span></a></span><span class="refpurpose"> —
create and register a ccw group device
</span></dt><dt><span class="refentrytitle"><a href="re47.html"><span>ccwgroup_driver_register</span></a></span><span class="refpurpose"> —
register a ccw group driver
</span></dt><dt><span class="refentrytitle"><a href="re48.html"><span>ccwgroup_driver_unregister</span></a></span><span class="refpurpose"> —
deregister a ccw group driver
</span></dt><dt><span class="refentrytitle"><a href="re49.html"><span>ccwgroup_probe_ccwdev</span></a></span><span class="refpurpose"> —
probe function for slave devices
</span></dt><dt><span class="refentrytitle"><a href="re50.html"><span>ccwgroup_remove_ccwdev</span></a></span><span class="refpurpose"> —
remove function for slave devices
</span></dt></dl></div></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re43.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="re44.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>cmf_readall</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>struct ccwgroup_device</span></td></tr></table></div></body></html>
