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Commit 7e4a90cb authored by Tomas Winkler's avatar Tomas Winkler Committed by Greg Kroah-Hartman
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mei: add ABI documentation for fw_status exported through sysfs 



Signed-off-by: default avatarTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b13a65ef

Documentation/ABI/testing/sysfs-class-mei

+15 −0
Original line number Diff line number Diff line
@@ -14,3 +14,18 @@ Description: 
		The /sys/class/mei/meiN directory is created for

		each probed mei device



What:		/sys/class/mei/meiN/fw_status

Date:		Nov 2014

KernelVersion:	3.19

Contact:	Tomas Winkler <tomas.winkler@intel.com>

Description:	Display fw status registers content



		The ME FW writes its status information into fw status

		registers for BIOS and OS to monitor fw health.



		The register contains running state, power management

		state, error codes, and others. The way the registers

		are decoded depends on PCH or SoC generation.

		Also number of registers varies between 1 and 6

		depending on generation.