Int 13/AX=1700h

Future Domain SCSI CONTROLLER - GET INQUIRY INFO FROM SCSI DEVICE

AX = 1700h
CL = length of buffer
DL = hard drive ID
ES:BX -> buffer for info (see #00243)

Return:
CF clear if successful
CH = number of bytes returned in buffer???
CF set on error
AH = status code (see #00234 at AH=01h)

Notes: This function is not available with 8-bit controller ROM versions < 7.0. Information block bytes 5-n are vendor-specific in older SCSI devices. The TMC-950 does not support any Future Domain BIOS calls; instead, it provides a full CAM implementation (see INT 4F/AX=8100h)

See Also: AH=18h"SCSI" - AH=1Bh"SCSI"

Format of Future Domain SCSI inquiry information block: Offset Size Description (Table 00243) 00h BYTE device type

bits 0-4:
Peripheral device type (see #00244)

bits 5-7:
Peripheral qualifier (see #00245) 01h BYTE device type modifier

bits 0-6:
Device type modifier

bit 7:
Removable medium 02h BYTE SCSI version (see #00246) 03h BYTE data format/capabilities (see #00247) 04h BYTE additional data length (total remaining bytes) 05h 2 BYTEs reserved 07h BYTE device capabilities (see #00248) 08h 8 BYTEs vendor identification (space-padded ASCII) 10h 8 BYTEs product identification (space-padded ASCII) 20h 4 BYTEs product revision level (space-padded ASCII) 24h 20 BYTEs vendor specific 38h 40 BYTEs reserved 60h var vendor specific parameters

(Table 00244) Values for Future Domain SCSI peripheral device type: 00h direct-access device (e.g., magnetic disk) 01h sequential-access device (e.g., magnetic tape) 02h printer device 03h processor device 04h write-once device (e.g., some optical disks) 05h CD-ROM device 06h scanner device 07h optical memory device (e.g., some optical disks) 08h medium changer device (e.g., jukeboxes) 09h communications device 0Ah (defined by ASC IT8) 0Bh (defined by ASC IT8) 0Ch-1Eh reserved 1Fh unknown or no device type

(Table 00245) Values for Future Domain SCSI peripheral qualifier: 000b device is currently connected to this logical unit and available 001b target is capable of supporting the specified peripheral, but the physical device is not currently connected to this logical unit 010b reserved 011b target can't support a physical device on this logical unit 1xxb vendor specific

Bitfields for Future Domain SCSI version: Bit(s) Description (Table 00246) 0-2 ANSI-approved version. 000 device might or might not comply to ANSI standard. 001 device complies to ANSI SCSI-1. 010 device complies to ANSI SCSI-2. Other reserved 3-5 ECMA version 6-7 ISO version

Bitfields for Future Domain SCSI data format/capabilities: Bit(s) Description (Table 00247) 0-2 response data format. 000 information block is as specified in SCSI-1. 001 information block is as specified in CCS. 010 information block is as specified in SCSI-2. Other reserved 4-5 reserved 6 terminate I/O process supported 7 asynchronous event notification supported

Bitfields for Future Domain SCSI device capabilities: Bit(s) Description (Table 00248) 0 device responds to RESET with a hard RESET 1 tagged command queuing supported 2 reserved 3 linked commands supported 4 synchronous data transfer supported 5 16-transfers supported 6 32-transfers supported 7 relative addressing supported

Category: Disk I/O Enhancements - Int 13h - F

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