Hi Bart, +AD4- Since this patch series does not touch any include/uapi header and since no +AD4- uapi UFS header files already exist, how is user space software expected to +AD4- know which message format it should use for communicating over the UFS BSG +AD4- endpoint? I don't think that +ACI-read the source+ACI- is an acceptable answer. I was thinking in V5 to move some of the notations from include/uapi to ufs+AF8-bsg.h. Or, I can add a +ACI-bsg support+ACI- paragraph to Documentation/scsi/ufs.txt, Or even a new entry to Documentation/ABI/testing/ - whatever you think is best? Thanks, Avri +AD4- +AD4- Thanks, +AD4- +AD4- Bart.