Hi Tomas, On 06/01/2016 11:41 PM, Winkler, Tomas wrote: > The user space API is achieved via single synchronous IOCTL. > The request is submitted in in_frames_ptr pointer and received > in out_frames_ptr. I like this, because it's exactly what I wish existed when I wrote the eMMC RPMB back-end for OP-TEE secure storage [1] ;-) Same goes for patch 5/8 "char: rpmb: add RPMB simulation device": with this I could just drop my custom simulation layer. So, this goes in the right direction IMHO. [1] https://github.com/OP-TEE/optee_client/blob/master/tee-supplicant/src/rpmb.c -- Jerome -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html