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1What: /sys/class/mei/
2Date: May 2014
3KernelVersion: 3.17
4Contact: Tomas Winkler <tomas.winkler@intel.com>
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 <tomas.winkler@intel.com>
13Description:
14 The /sys/class/mei/meiN directory is created for
15 each probed mei device
16
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17What: /sys/class/mei/meiN/fw_status
18Date: Nov 2014
19KernelVersion: 3.19
20Contact: Tomas Winkler <tomas.winkler@intel.com>
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
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32What: /sys/class/mei/meiN/hbm_ver
33Date: Aug 2016
34KernelVersion: 4.9
35Contact: Tomas Winkler <tomas.winkler@intel.com>
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 <tomas.winkler@intel.com>
45Description: Display the driver HBM protocol version.
46
47 The HBM protocol version supported by the driver.