Chapter 3. The ccwgroup bus
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# Chapter 3. The ccwgroup bus

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.

## ccw group devices

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cmf_readall | Home | struct ccwgroup_device