32 lines
1.4 KiB
Plaintext
32 lines
1.4 KiB
Plaintext
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What: /sys/bus/mhi/devices/.../serialnumber
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Date: Sept 2020
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KernelVersion: 5.10
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Contact: Bhaumik Bhatt <bbhatt@codeaurora.org>
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Description: The file holds the serial number of the client device obtained
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using a BHI (Boot Host Interface) register read after at least
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one attempt to power up the device has been done. If read
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without having the device power on at least once, the file will
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read all 0's.
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Users: Any userspace application or clients interested in device info.
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What: /sys/bus/mhi/devices/.../oem_pk_hash
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Date: Sept 2020
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KernelVersion: 5.10
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Contact: Bhaumik Bhatt <bbhatt@codeaurora.org>
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Description: The file holds the OEM PK Hash value of the endpoint device
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obtained using a BHI (Boot Host Interface) register read after
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at least one attempt to power up the device has been done. If
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read without having the device power on at least once, the file
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will read all 0's.
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Users: Any userspace application or clients interested in device info.
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What: /sys/bus/mhi/devices/.../soc_reset
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Date: April 2022
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KernelVersion: 5.19
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Contact: mhi@lists.linux.dev
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Description: Initiates a SoC reset on the MHI controller. A SoC reset is
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a reset of last resort, and will require a complete re-init.
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This can be useful as a method of recovery if the device is
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non-responsive, or as a means of loading new firmware as a
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system administration task.
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