CDC_MRW
CDC_MRW, info, &pos, CTL_CAPABILITY))
cdi->mask &= ~CDC_MRW;
cdi->mask |= CDC_MRW;
!CDROM_CAN(CDC_CD_R|CDC_CD_RW|CDC_DVD|CDC_DVD_R|CDC_MRW|CDC_MO_DRIVE))
CDC_MRW|CDC_MRW_W|CDC_RAM)
CDC_MRW | CDC_MRW_W | CDC_RAM);