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2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 
 kernel/Documentation/ABI/testing/sysfs-class-mei
....@@ -65,3 +65,41 @@
6565 		<platform>:<major>.<minor>.<milestone>.<build_no>.
6666 		There can be up to three such blocks for different
6767 		FW components.
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+
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+What:		/sys/class/mei/meiN/dev_state
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+Date:		Mar 2019
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+KernelVersion:	5.1
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+Contact:	Tomas Winkler <tomas.winkler@intel.com>
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+Description:	Display the ME device state.
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+
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+		The device state can have following values:
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+		INITIALIZING
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+		INIT_CLIENTS
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+		ENABLED
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+		RESETTING
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+		DISABLED
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+		POWER_DOWN
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+		POWER_UP
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+
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+What:		/sys/class/mei/meiN/trc
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+Date:		Nov 2019
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+KernelVersion:	5.5
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+Contact:	Tomas Winkler <tomas.winkler@intel.com>
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+Description:	Display trc status register content
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+
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+		The ME FW writes Glitch Detection HW (TRC)
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+		status information into trc status register
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+		for BIOS and OS to monitor fw health.
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+
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+What:		/sys/class/mei/meiN/kind
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+Date:		Jul 2020
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+KernelVersion:	5.8
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+Contact:	Tomas Winkler <tomas.winkler@intel.com>
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+Description:	Display kind of the device
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+
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+		Generic devices are marked as "mei"
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+		while special purpose have their own
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+		names.
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+		Available options:
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+		- mei:  generic mei device.
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+		- itouch:  itouch (ipts) mei device.