User's Guide

Chapter 2 Media Changer Commands
Inquiry Command (12h)
Quantum SuperLoader 3 Software Interface Guide 21
ECMA-Version Must be 0.
ANSI-Approved
Version
2.
CDB Size This field contains the number of bytes in the
CDB for the Operation
Code
being requested and the size of the CDB Usage Data in the data
that is returned in response to the
INQUIRY.
CDB Usage Data This field contains information about the
CDB for the Operation Code
being queried. Note that the first byte of the
CDB Usage Data contains
the
OpCode for the operation specified. All of the other bytes of the
CDB Usage Data contain a map for bits in the CDB of the OpCode
specified.
NOTE: The bits in the map have a 1-to-1 correspondence to the
CDB for the OpCode being
queried. That is, if the device senses a bit as the entire field or as part of the field of the
operation, the map in
CDB Usage Data contains a 1 in the corresponding bit position. If the
device ignores a bit or declares a bit as “reserved” in the
CDB for the OpCode being queried, the
map has a 0 in that corresponding bit position.
Field Name Description