Reference Guide

Chapter 4 SCSI Commands
REPORT SUPPORTED OPERATION CODES Command (A3h/0Ch)
DLT-S4 Interface Reference Guide 296
Table 163 REPORT
SUPPORTED OPERATION
CODES Command Descriptor
Block — Field Descriptions
Field Description
Service Action A service action of 0Ch identifies this as the
REPORT SUPPORTED OPERATION
CODES command.
Reporting Options Specifies the type of information to be returned in the parameter data. All values
other than those listed are reserved.
Value Description
000b The drive returns a list of all supported operation codes and service
actions in the all_commands parameter data format. The drive ignores
any values in the Requested Operation Code and Requested Service
Action fields (see All_commands Parameter Data Format
on page 296
for more information).
001b The drive returns the command support data in the one_command
parameter data format for the operation code specified in the
Requested Operation Code field. The drive ignores any value in the
Requested Service Action field.
010b The drive returns the command support data in the one_command
parameter data format for the operation code and service action
specified in the Requested Operation Code and Requested Service
Action fields.
Requested
Operation Code
Specifies the operation code of the command to be returned in the one_command
parameter data format (see One_command Parameter Data Format
on page 298
for more information).
Requested Service
Action
Specifies the service action of the command to be returned in the one_command
parameter data format (see One_command Parameter Data Format
on page 298
for more information).
Allocation Length Specifies the number of bytes allocated for the returned parameter data. If the
Allocation Length value is not large enough to hold all of the parameter data, the
drive truncates the data it returns. This is not considered an error. The actual
length of the parameter data is available in the Additional Length field in the
parameter data. If the remainder of the parameter data is required, the
application client must send a new
REPORT SUPPORTED OPERATION CODES
command with an Allocation Length field value large enough to hold all of the
data.