Hello Jaehoon, > R/W bit is one-time programmable and readable. what do you mean? Yes, right. Sorry, I was confused with word one-time programmable as W bit. > If you want to enable the bkops, then you can use your patch at your local repo, not mainline. OK. Thanks for the information. Regards, Prasanna NAVARATNA -- 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