0001 What: /sys/bus/mhi/devices/.../serialnumber
0002 Date: Sept 2020
0003 KernelVersion: 5.10
0004 Contact: Bhaumik Bhatt <bbhatt@codeaurora.org>
0005 Description: The file holds the serial number of the client device obtained
0006 using a BHI (Boot Host Interface) register read after at least
0007 one attempt to power up the device has been done. If read
0008 without having the device power on at least once, the file will
0009 read all 0's.
0010 Users: Any userspace application or clients interested in device info.
0011
0012 What: /sys/bus/mhi/devices/.../oem_pk_hash
0013 Date: Sept 2020
0014 KernelVersion: 5.10
0015 Contact: Bhaumik Bhatt <bbhatt@codeaurora.org>
0016 Description: The file holds the OEM PK Hash value of the endpoint device
0017 obtained using a BHI (Boot Host Interface) register read after
0018 at least one attempt to power up the device has been done. If
0019 read without having the device power on at least once, the file
0020 will read all 0's.
0021 Users: Any userspace application or clients interested in device info.
0022
0023 What: /sys/bus/mhi/devices/.../soc_reset
0024 Date: April 2022
0025 KernelVersion: 5.19
0026 Contact: mhi@lists.linux.dev
0027 Description: Initiates a SoC reset on the MHI controller. A SoC reset is
0028 a reset of last resort, and will require a complete re-init.
0029 This can be useful as a method of recovery if the device is
0030 non-responsive, or as a means of loading new firmware as a
0031 system administration task.
