Indeed, hdparm does not need to open the file RW. I have only tested RO hdparm with -t, -T, -y, -Y, -i, -I, and -C, and not very thoroughly.
Indeed, hdparm does not need to open the file RW. I have only tested RO hdparm with -t, -T, -y, -Y, -i, -I, and -C, and not very thoroughly.