Hi, Following is the behavior of sd card with write-protect switch on/off. Tested in 4.14.103-rt55 debian. When a sd card is inserted with unlocked mode (write protect switch off) /sys/block/sda/ro is 0 When the sd card is removed and inserted with locked mode (write protect switch on) /sys/block/sda/ro is 1 Now again when the sd card is removed and inserted in unlocked mode, /sys/block/sda/ro is still 1 In mmc_sd_setup_card(), after mmc_sd_get_ro() is retrived mmc_card_set_readonly() is called if the write protect switch is active(1). Do we need to reset the read-only status if write protect switch is not active(0). Any pointers will be helpful. Thanks. Thanks. Regards, Vignesh
