From: Tomas Winkler Date: Thu, 18 Dec 2014 22:44:59 +0000 (+0200) Subject: mei: add ABI documentation for fw_status exported through sysfs X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7e4a90cb2efecb3799bde9280efbf7f4af8f891b;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git mei: add ABI documentation for fw_status exported through sysfs Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- 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 +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. +