Table 3.11 INQUIRY Command

Bit

7

6

5

 

4

3

 

2

1

0

 

 

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

Operation Code (12h)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Logical Unit Number

 

 

Reserved

 

EVPD

 

 

 

 

 

 

 

 

 

 

 

 

 

INTERFACE

2

 

 

 

 

Page Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

Allocation Length

 

 

 

 

 

5

 

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EVPD (Enable Vital Product Data):

This bit of one specifies that the target shall return the optional vital product data specified by the page code field. If the target does not support vital product data and this bit is set to one, the target shall return CHECK CONDITION status with the sense key set to ILLEGAL REQUEST and an additional sense code of INVALID FIELD IN CDB.

This bit of zero specifies that the target shall return the standard INQUIRY data. If the page code field not zero, the target shall return CHECK CONDITION status with the sense key set to ILLEGAL REQUEST and an additional sense code of INVALID FIELD IN CDB.

Page Code:

This field specifies which page of vital product data information the target shall return (see ANSI SCSI-2 7.3.4). The supported vital product data in this scanner is Page Code F0h.

The INQUIRY command shall return CHECK CONDITION status only when the target cannot return the requested INQUIRY data.

M3099GX/GH OEM Manual

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