Merge tag 'docs-4.10-2' of git://git.lwn.net/linux
[sfrench/cifs-2.6.git] / Documentation / ABI / testing / sysfs-class-mei
1 What:           /sys/class/mei/
2 Date:           May 2014
3 KernelVersion:  3.17
4 Contact:        Tomas Winkler <tomas.winkler@intel.com>
5 Description:
6                 The mei/ class sub-directory belongs to mei device class
7
8
9 What:           /sys/class/mei/meiN/
10 Date:           May 2014
11 KernelVersion:  3.17
12 Contact:        Tomas Winkler <tomas.winkler@intel.com>
13 Description:
14                 The /sys/class/mei/meiN directory is created for
15                 each probed mei device
16
17 What:           /sys/class/mei/meiN/fw_status
18 Date:           Nov 2014
19 KernelVersion:  3.19
20 Contact:        Tomas Winkler <tomas.winkler@intel.com>
21 Description:    Display fw status registers content
22
23                 The ME FW writes its status information into fw status
24                 registers for BIOS and OS to monitor fw health.
25
26                 The register contains running state, power management
27                 state, error codes, and others. The way the registers
28                 are decoded depends on PCH or SoC generation.
29                 Also number of registers varies between 1 and 6
30                 depending on generation.
31
32 What:           /sys/class/mei/meiN/hbm_ver
33 Date:           Aug 2016
34 KernelVersion:  4.9
35 Contact:        Tomas Winkler <tomas.winkler@intel.com>
36 Description:    Display the negotiated HBM protocol version.
37
38                 The HBM protocol version negotiated
39                 between the driver and the device.
40
41 What:           /sys/class/mei/meiN/hbm_ver_drv
42 Date:           Aug 2016
43 KernelVersion:  4.9
44 Contact:        Tomas Winkler <tomas.winkler@intel.com>
45 Description:    Display the driver HBM protocol version.
46
47                 The HBM protocol version supported by the driver.