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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /Documentation/ABI/testing/sysfs-class-mei | |
| parent | Initial commit. (diff) | |
| download | linux-upstream.tar.xz linux-upstream.zip | |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-mei | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-mei b/Documentation/ABI/testing/sysfs-class-mei new file mode 100644 index 000000000..17d7444a2 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-mei @@ -0,0 +1,67 @@ +What: /sys/class/mei/ +Date: May 2014 +KernelVersion: 3.17 +Contact: Tomas Winkler <tomas.winkler@intel.com> +Description: + The mei/ class sub-directory belongs to mei device class + + +What: /sys/class/mei/meiN/ +Date: May 2014 +KernelVersion: 3.17 +Contact: Tomas Winkler <tomas.winkler@intel.com> +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. + +What: /sys/class/mei/meiN/hbm_ver +Date: Aug 2016 +KernelVersion: 4.9 +Contact: Tomas Winkler <tomas.winkler@intel.com> +Description: Display the negotiated HBM protocol version. + + The HBM protocol version negotiated + between the driver and the device. + +What: /sys/class/mei/meiN/hbm_ver_drv +Date: Aug 2016 +KernelVersion: 4.9 +Contact: Tomas Winkler <tomas.winkler@intel.com> +Description: Display the driver HBM protocol version. + + The HBM protocol version supported by the driver. + +What: /sys/class/mei/meiN/tx_queue_limit +Date: Jan 2018 +KernelVersion: 4.16 +Contact: Tomas Winkler <tomas.winkler@intel.com> +Description: Configure tx queue limit + + Set maximal number of pending writes + per opened session. + +What: /sys/class/mei/meiN/fw_ver +Date: May 2018 +KernelVersion: 4.18 +Contact: Tomas Winkler <tomas.winkler@intel.com> +Description: Display the ME firmware version. + + The version of the platform ME firmware is in format: + <platform>:<major>.<minor>.<milestone>.<build_no>. + There can be up to three such blocks for different + FW components. |