SCSI Commands: 38BREPORT SUPPORTED OPERATION CODES
Page
163
Field Bytes
Bits
Description
Requested
Operation
Code
3 The Requested Operation Code field specifies the operation
code of the one command data to be returned.
Requested
Service
Action
4-5 The Requested Service Action field specifies the service action
of the one command data to be returned.
Allocation
Length
6-9
Specifies the amount of data to be returned, in bytes.
Reserved
All reserved bits must be 0.
Control 11
See
SCSI Command Control Byte Format on page 25.
3.26.2
REPORT SUPPORTED OPERATION CODES Data
The following data is returned by the REPORT SUPPORTED OPERATION CODES
command when all commands parameter data is requested.
Byte
Bits
7 6 5 4 3 2 1 0
0
(MSB)
3
Command Data Length (n-3)
(LSB)
Command Descriptors
4
Command Descriptor 0
.
.
n
Command Descriptor x
The Command Descriptor Format
Byte
Bits
7 6 5 4 3 2 1 0
0
Operation Code
1
Reserved
2
(MSB)
3
Service Action
(LSB)
4
Reserved
5
Reserved
SERVA
CTV
6
(MSB
7
CDB Length
(LSB)
3.26.2.1
REPORT SUPPORTED OPERATION CODES Data Field
Descriptions
Field Bytes
Bits
Description
Operation
Code
0 The Operation Code field contains the operation code of a
command supported by the drive.
Service
Action
2-3 The Service Action field contains a supported service action of the
supported operation code indicated by the Operation Code field.
Содержание LTO 4
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