Int 13 Fn 59  - Syquest - Generic Scsi Pass Through                        [d]

   AH = 59h
   CX = HOST_ID, 0-based
   DX = 80h
   ES:BX pointer to SCSI structure (see #0215)

Return: CF clear
   AH = 95h

See Also: AH=12h"SyQuest",AH=13h"SyQuest",AH=1Fh"SyQuest"

Format of SyQuest SCSI structure:
Offset Size    Description (Table 0215)
 00h   WORD    opcode (see #0216)
 02h   BYTE    target's SCSI ID
 03h   BYTE    target's logical unit number
 04h   BYTE    data direction (00h no data xfer, 01h data in, FFh data out)
 05h   BYTE    host status
       00h successful
       01h selection time out
       02h data over-run or under-run
 06h   BYTE    target status at command completion
       00h successful
       02h check status
       08h busy
 07h   BYTE    command data block length
 08h   DWORD   request data length
 0Ch   DWORD   result data length (actual length of data transferred)
 10h   DWORD   -> CDB (see #2907,#2908,#2909)
 14h   DWORD   -> data buffer

Note:  The handler does not perform a 'Request Sense' command if there was an
     error

(Table 0216)
Values for SCSI opcode:
 00h   verify interface
   clears carry flag and returns if function is available
 01h   returns the ID of the INT 13h Handler in a NULL terminated string of
   length less than 40 byte including the terminator.
   The string is stored in the buffer pointed by p_buf.
 02h   device mapping info. The caller provides a one byte buffer.
   The handler stores the Int 13h Device ID (80h or above) in the buffer.
   It stores 0 if that target does not exists.
 03h   execute SCSI command
 04h   device reset
 05h   SCSI bus reset

See Also: #0215