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author | Dmitry Torokhov <dtor@insightbb.com> | 2007-02-10 01:26:32 -0500 |
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committer | Dmitry Torokhov <dtor@insightbb.com> | 2007-02-10 01:26:32 -0500 |
commit | b22364c8eec89e6b0c081a237f3b6348df87796f (patch) | |
tree | 233a923281fb640106465d076997ff511efb6edf /Documentation/s390/driver-model.txt | |
parent | 2c8dc071517ec2843869024dc82be2e246f41064 (diff) | |
parent | 66efc5a7e3061c3597ac43a8bb1026488d57e66b (diff) |
Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'Documentation/s390/driver-model.txt')
-rw-r--r-- | Documentation/s390/driver-model.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/s390/driver-model.txt b/Documentation/s390/driver-model.txt index 77bf450ec39..e938c442277 100644 --- a/Documentation/s390/driver-model.txt +++ b/Documentation/s390/driver-model.txt @@ -18,11 +18,18 @@ devices/ - 0.0.0002/ - 0.1.0000/0.1.1234/ ... + - defunct/ In this example, device 0815 is accessed via subchannel 0 in subchannel set 0, device 4711 via subchannel 1 in subchannel set 0, and subchannel 2 is a non-I/O subchannel. Device 1234 is accessed via subchannel 0 in subchannel set 1. +The subchannel named 'defunct' does not represent any real subchannel on the +system; it is a pseudo subchannel where disconnnected ccw devices are moved to +if they are displaced by another ccw device becoming operational on their +former subchannel. The ccw devices will be moved again to a proper subchannel +if they become operational again on that subchannel. + You should address a ccw device via its bus id (e.g. 0.0.4711); the device can be found under bus/ccw/devices/. |