const
   SCSI_IOCTL_SEND_COMMAND = 1;
   SCSI_IOCTL_TEST_UNIT_READY = 2;
   SCSI_IOCTL_BENCHMARK_COMMAND = 3;
   SCSI_IOCTL_SYNC = 4;
   SCSI_IOCTL_START_UNIT = 5;
   SCSI_IOCTL_STOP_UNIT = 6;
   SCSI_IOCTL_DOORLOCK = $5380;
   SCSI_IOCTL_DOORUNLOCK = $5381;

{ ---------------------------------------------------------------------
    Borland compatibility types
  ---------------------------------------------------------------------}

// Type