Int 7D Fn 02  - Scsilink - Send Command                                    [G]

   AH = 02h
   ES:BX -> parameter block (see #3534)

Return: CF clear if successful
   CF set on error
       AL = initiator error
       AH = target error
Desc:  send the specified command block to the target device and perform any
     related I/O

Format of SCSILink parameter block:
Offset Size    Description (Table 3534)
 00h   DWORD   size of command block
 04h   DWORD   address of command block (see #3535)
 08h   DWORD   size of buffer
 0Ch   DWORD   address of buffer

Format of SCSILink command block:
Offset Size    Description (Table 3535)
 00h       info not yet available