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drivers/fsi: Document FSI master sysfs files in ABI

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Add info for sysfs scan file in Documentaiton ABI/testing

Signed-off-by: Christopher Bostic <cbostic@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Christopher Bostic 2017-06-06 16:08:53 -05:00 committed by Greg Kroah-Hartman
parent 1fa847d74a
commit a7ec9371dd
1 changed files with 38 additions and 0 deletions
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Documentation/ABI/testing/sysfs-bus-fsi Normal file
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What: /sys/bus/platform/devices/fsi-master/rescan
Date: May 2017
KernelVersion: 4.12
Contact: cbostic@linux.vnet.ibm.com
Description:
Initiates a FSI master scan for all connected slave devices
on its links.
What: /sys/bus/platform/devices/fsi-master/break
Date: May 2017
KernelVersion: 4.12
Contact: cbostic@linux.vnet.ibm.com
Description:
Sends an FSI BREAK command on a master's communication
link to any connnected slaves. A BREAK resets connected
device's logic and preps it to receive further commands
from the master.
What: /sys/bus/platform/devices/fsi-master/slave@00:00/term
Date: May 2017
KernelVersion: 4.12
Contact: cbostic@linux.vnet.ibm.com
Description:
Sends an FSI terminate command from the master to its
connected slave. A terminate resets the slave's state machines
that control access to the internally connected engines. In
addition the slave freezes its internal error register for
debugging purposes. This command is also needed to abort any
ongoing operation in case of an expired 'Master Time Out'
timer.
What: /sys/bus/platform/devices/fsi-master/slave@00:00/raw
Date: May 2017
KernelVersion: 4.12
Contact: cbostic@linux.vnet.ibm.com
Description:
Provides a means of reading/writing a 32 bit value from/to a
specified FSI bus address.