1What:		/sys/class/mei/
2Date:		May 2014
3KernelVersion:	3.17
4Contact:	Tomas Winkler <[email protected]>
5Description:
6		The mei/ class sub-directory belongs to mei device class
7
8
9What:		/sys/class/mei/meiN/
10Date:		May 2014
11KernelVersion:	3.17
12Contact:	Tomas Winkler <[email protected]>
13Description:
14		The /sys/class/mei/meiN directory is created for
15		each probed mei device
16
17What:		/sys/class/mei/meiN/fw_status
18Date:		Nov 2014
19KernelVersion:	3.19
20Contact:	Tomas Winkler <[email protected]>
21Description:	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
32What:		/sys/class/mei/meiN/hbm_ver
33Date:		Aug 2016
34KernelVersion:	4.9
35Contact:	Tomas Winkler <[email protected]>
36Description:	Display the negotiated HBM protocol version.
37
38		The HBM protocol version negotiated
39		between the driver and the device.
40
41What:		/sys/class/mei/meiN/hbm_ver_drv
42Date:		Aug 2016
43KernelVersion:	4.9
44Contact:	Tomas Winkler <[email protected]>
45Description:	Display the driver HBM protocol version.
46
47		The HBM protocol version supported by the driver.
48
49What:		/sys/class/mei/meiN/tx_queue_limit
50Date:		Jan 2018
51KernelVersion:	4.16
52Contact:	Tomas Winkler <[email protected]>
53Description:	Configure tx queue limit
54
55		Set maximal number of pending writes
56		per opened session.
57