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| author | Tomas Winkler <tomas.winkler@intel.com> | 2014-12-18 23:44:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-09 23:53:13 +0100 |
| commit | 7e4a90cb2efecb3799bde9280efbf7f4af8f891b (patch) | |
| tree | ee5535a411a41b3df677f34b3d935774f662b1d5 /Documentation | |
| parent | mei: clean reset bit before reset (diff) | |
| download | linux-7e4a90cb2efecb3799bde9280efbf7f4af8f891b.tar.xz linux-7e4a90cb2efecb3799bde9280efbf7f4af8f891b.zip | |
mei: add ABI documentation for fw_status exported through sysfs
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-mei | 15 |
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. + |