ATA_DRIVE_ATAPIDSCW
drvp->drive_flags |= ATA_DRIVE_ATAPIDSCW;
if (drvp->drive_flags & ATA_DRIVE_ATAPIDSCW) {
drvp->drive_flags |= ATA_DRIVE_ATAPIDSCW;
if (drvp->drive_flags & ATA_DRIVE_ATAPIDSCW) {
drvp->drive_flags |= ATA_DRIVE_ATAPIDSCW;