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- 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.
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