Int 13 Fn 5503  - Seagate St01/st01 - Set Device Type Qualifier (dtq)      [d]

   AX = 5503h
   DH = DTQ byte (see #0214)
   DL = drive ID (80h, 81h, ...)

Return: nothing

Bitfields for DTQ byte:
Bit(s) Description (Table 0214)
 7 reserved
 6 SCSI drive attached
 5 reserved
 4 selected drive is ST225N/NP (Paired)
 3 selected drive is ST225N
 2 Host Adapter checks parity on the selected drive
 1 selected drive has been installed
 0 Seagate installation software present