1What: /sys/bus/mhi/devices/.../serialnumber 2Date: Sept 2020 3KernelVersion: 5.10 4Contact: mhi@lists.linux.dev 5Description: The file holds the serial number of the client device obtained 6 using a BHI (Boot Host Interface) register read after at least 7 one attempt to power up the device has been done. If read 8 without having the device power on at least once, the file will 9 read all 0's. 10Users: Any userspace application or clients interested in device info. 11 12What: /sys/bus/mhi/devices/.../oem_pk_hash 13Date: Sept 2020 14KernelVersion: 5.10 15Contact: mhi@lists.linux.dev 16Description: The file holds the OEM PK Hash value of the endpoint device 17 obtained using a BHI (Boot Host Interface) register read after 18 at least one attempt to power up the device has been done. If 19 read without having the device power on at least once, the file 20 will read all 0's. 21Users: Any userspace application or clients interested in device info. 22 23What: /sys/bus/mhi/devices/.../soc_reset 24Date: April 2022 25KernelVersion: 5.19 26Contact: mhi@lists.linux.dev 27Description: Initiates a SoC reset on the MHI controller. A SoC reset is 28 a reset of last resort, and will require a complete re-init. 29 This can be useful as a method of recovery if the device is 30 non-responsive, or as a means of loading new firmware as a 31 system administration task. 32
