summaryrefslogtreecommitdiffstats
path: root/Documentation
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2015-01-17 08:18:08 +1300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-01-17 08:18:08 +1300
commit7ad4b4ae5757b89637f5767ae5d9e1436a6413e0 (patch)
tree7a025400de12c813b395efcba459ac4088679ec5 /Documentation
parent62b1530065e9ced536ada063a4d0a748efa43cc8 (diff)
parent7b7c54914f73966976893747ee8e2ca58166a627 (diff)
downloadlinux-7ad4b4ae5757b89637f5767ae5d9e1436a6413e0.tar.bz2
Merge tag 'char-misc-3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH: "Here are three small driver fixes for reported issues for 3.19-rc5. All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: mcb: mcb-pci: Only remap the 1st 0x200 bytes of BAR 0 mei: add ABI documentation for fw_status exported through sysfs mei: clean reset bit before reset
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/sysfs-class-mei15
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-mei b/Documentation/ABI/testing/sysfs-class-mei
index 0ec8b8178c41..80d9888a8ece 100644
--- a/Documentation/ABI/testing/sysfs-class-mei
+++ b/Documentation/ABI/testing/sysfs-class-mei
@@ -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.
+