Hi, On Mon, Oct 24 2011, Shashidhar Hiremath wrote: > As explained in previous mail, the IOCTL is actually an inteface to > block layer and it is only expecting read/write commands to be sent > through the interface.The prrof of it can be seen in write_flag > present in the IOCTL structure which indicates the either the command > can be read or a write command. Please just try it, using an arbitrary write_flag. Thanks, - Chris. -- Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/> One Laptop Per Child -- 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