Int 68 Fn 01  - Appc/pc - Network Device Control - Detach Logical Unit     [N]

   AH = 01h subfn 2200h
   DS:DX -> control block

Return: control block updated

See Also: AH=01h/SF=2000h,AH=01h/SF=2100h,AH=01h/SF=2700h

Format of control block:
Offset Size    Description
 00h 12 BYTEs  reserved
 0Ch   WORD    2200h (verb "Detach Logical Unit")
 0Eh  6 BYTEs  00h
 14h   DWORD   (big-endian) return code (see AH=01h/SF=1B00h)
 18h  8 BYTEs  (big-endian) logical unit ID
 20h   BYTE    00h