Hi! > What we're worried about is someone issuing the perm read-only command, > and not realizing that it really means that they can never ever write > any more changes to their eMMC -- it's a one-time fuse I can see why you are worried that people may brick their devices. How about only adding the read-only-until-power-cycled command? > I'd rather leave it to specialized manufacturing equipment. Sure, but then again permanent read-only commands seem to be able to be sent by writing a userspace tool that issues a ioctl(fd, 0xb3, ...) using the generic command interface by John Calixto mentioned by Andrei. I assume that what reassures you in this case is that CAP_SYS_RAWIO is required and perhaps also obscurity? / Sebastian -- 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
