SCSI_RW_READ
read = (readop & SCSI_RW_DIRMASK) == SCSI_RW_READ;
SCSI_RW_READ : SCSI_RW_WRITE,
rw_op = SCSI_RW_READ;
SCSI_RW_READ : SCSI_RW_WRITE) |
read = (readop & SCSI_RW_DIRMASK) == SCSI_RW_READ;
/*readop*/ (dev->write_dev == 0) ? SCSI_RW_READ :