M2488 PRODUCT GUIDE MEDIA CHANGER COMMANDS
March 1997 CG00000-011503 REV. A 6-45
6-4.4 ASCII Implemented Operating Definition Page 82h
VPD page 82h returns the target’s implemented operating definitions in ASCII format. The format
for VPD page 82h is:
The ASCII operating definition description length field indicates the length in bytes of the ASCII
operating definition description data that follows. If the allocation length is less than the length of
data to be returned, the ASCII operation definition description length is not adjusted to reflect the
truncation.
The ASCII operating definition description data field contains the ASCII operating definition
description data. The data in this field is formatted in lines, where each line is terminated with a
NULL (00h) character. The ASCII characters in each line shown in the table above are left aligned
and ASCII spaces (20h) are used to pad each line up to the NULL (00h) character. Each line has a
total length of 39 (27h) bytes, including the NULL character.
Reference the Change Definition SCSI command specification (CDB byte 3) for a description of the
supported operating definitions.
Table 6-55. INQUIRY Data Format VPD Page 82h - ASCII Implemented Operating Definition Page
BITS
BYTES
7 654321 0
0
Peripheral Qualifier Peripheral Device Type =08h
1
Page code = 82h
2
Reserved
3
Page length = 76h
4
ASCII operating definition description length = 75h
ASCII OPERATING DEFINITION DESCRIPTION DATA
5-42
“00h - Use current operating definition”
43
NULL (00h)
44-81
“03h - SCSI-2 operating definition”
82
NULL (00h)
83-120
“40h - Change user product data”
121
NULL (00h)
