January 2006
Intermediate to advanced
226 pages
6h 11m
English
book
Linux for IBM System z9 and IBM zSeries
by Gregory Geiselhart, Robert Brenneman, Eli Dow, Klaus Egeler, Torsten Gutenberger, Bruce Hayden, Livio Sousa
Content preview from Linux for IBM System z9 and IBM zSeries
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88 Linux for IBM System z9 and IBM zSeries
Linux 2.6 kernel
The device driver creates files in the /sysfs filesystem when it is loaded. The
driver and the devices controlled by it are configured by writing values into these
files. An example of a command to activate a HiperSockets device follows:
echo 0.0.fa00,0.0.fa01,0.0.fa02 > /sys/bus/ccwgroup/drivers/qeth/group
The device is defined as part of the qeth group. The three device numbers are
specified in device bus-ID form with 0.0 proceeding each device number. The
device numbers are the read, write, and data channels of the device. The qeth
device driver uses the device bus-ID of the read
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