162306a36Sopenharmony_ciWhat: /sys/bus/mhi/devices/.../serialnumber 262306a36Sopenharmony_ciDate: Sept 2020 362306a36Sopenharmony_ciKernelVersion: 5.10 462306a36Sopenharmony_ciContact: mhi@lists.linux.dev 562306a36Sopenharmony_ciDescription: The file holds the serial number of the client device obtained 662306a36Sopenharmony_ci using a BHI (Boot Host Interface) register read after at least 762306a36Sopenharmony_ci one attempt to power up the device has been done. If read 862306a36Sopenharmony_ci without having the device power on at least once, the file will 962306a36Sopenharmony_ci read all 0's. 1062306a36Sopenharmony_ciUsers: Any userspace application or clients interested in device info. 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ciWhat: /sys/bus/mhi/devices/.../oem_pk_hash 1362306a36Sopenharmony_ciDate: Sept 2020 1462306a36Sopenharmony_ciKernelVersion: 5.10 1562306a36Sopenharmony_ciContact: mhi@lists.linux.dev 1662306a36Sopenharmony_ciDescription: The file holds the OEM PK Hash value of the endpoint device 1762306a36Sopenharmony_ci obtained using a BHI (Boot Host Interface) register read after 1862306a36Sopenharmony_ci at least one attempt to power up the device has been done. If 1962306a36Sopenharmony_ci read without having the device power on at least once, the file 2062306a36Sopenharmony_ci will read all 0's. 2162306a36Sopenharmony_ciUsers: Any userspace application or clients interested in device info. 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_ciWhat: /sys/bus/mhi/devices/.../soc_reset 2462306a36Sopenharmony_ciDate: April 2022 2562306a36Sopenharmony_ciKernelVersion: 5.19 2662306a36Sopenharmony_ciContact: mhi@lists.linux.dev 2762306a36Sopenharmony_ciDescription: Initiates a SoC reset on the MHI controller. A SoC reset is 2862306a36Sopenharmony_ci a reset of last resort, and will require a complete re-init. 2962306a36Sopenharmony_ci This can be useful as a method of recovery if the device is 3062306a36Sopenharmony_ci non-responsive, or as a means of loading new firmware as a 3162306a36Sopenharmony_ci system administration task. 32