Inquiry Command (12H); Standard Inquiry Data - Sony LIB-D81 Product Description Manual

8.2. INQUIRY Command (12h)

8.2.1. Standard INQUIRY data

The INQUIRY command is used to send autoloader data to the initiator.
Autoloader supplementary data can also be requested as an option.
Bit 7 6
Byte
0
1 Logical unit
number(000b)
2
3
4
5
Table 8.2.1 : INQUIRY command
When the Enable vital product data (EVPD) bit is 1, the autoloader returns the
VPD data specified in the Page Code field. When the EVPD bit is 0, the
autoloader returns standard Inquiry data. In this case, if the Page Code field is
set to a value other than 0, a CHECK CONDITION is returned from the
autoloader with the sense key ILLEGAL REQUEST and additional sense code
INVALID FIELD IN CDB.
The Page code field determines the page of VPD data to be returned by the
autoloader. (See Table 8.2.2.1)
Only when the INQUIRY data requested by the INQUIRY command cannot be
returned is a CHECK CONDITION status is returned. If an INQUIRY
command is received from an initiator having an unresolved UNIT
ATTENTION condition, the autoloader does not clear the UNIT ATTENTION
condition, but returns the INQUIRY data.
The standard INQUIRY data (see table), consists of 36 bytes.
Bit 7 6
Byte
0 Peripheral qualifier
1 RMB(1)
2 ISO version(0)
3 AENC TrmIOP
(0) (0)
4
5
6
7 RelAdr WBus32 WBus16
8 (MSB)
15
5 4 3 2
Operation code (12h)
Reserved(0h)
Page or Operation code
Reserved(0h)
Allocation length
Control(0h)
5 4 3 2
Peripheral device type
Device-type modifier(00h)
ECMA version(0)
Reserved(0) Response data format(2)
Additional length (1Fh)
Reserved(0h)
Reserved(0h)
Sync Linked Reserved
Vendor identification
"SONY"
Chapter 8 SCSI Commands
1 0
CMDDT EVPD
1 0
ANSI-approved
version(2)
CmdQue SftRe
(LSB)
61