SCSI Commands: 38BREPORT SUPPORTED OPERATION CODES Page 163Field Bytes Bits DescriptionRequestedOperationCode3 The Requested Operation Code field specifies the operationcode of the one command data to be returned.RequestedServiceAction4-5 The Requested Service Action field specifies the service actionof the one command data to be returned.AllocationLength6-9 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 DataThe following data is returned by the REPORT SUPPORTED OPERATION CODEScommand when all commands parameter data is requested.ByteBits7 6 5 4 3 2 1 00 (MSB)3Command Data Length (n-3)(LSB)Command Descriptors4 Command Descriptor 0..n Command Descriptor xThe Command Descriptor FormatByteBits7 6 5 4 3 2 1 00 Operation Code1 Reserved2 (MSB)3 Service Action (LSB)4 Reserved5 Reserved SERVACTV6 (MSB7 CDB Length (LSB)3.26.2.1 REPORT SUPPORTED OPERATION CODES Data FieldDescriptionsField Bytes Bits DescriptionOperationCode0 The Operation Code field contains the operation code of acommand supported by the drive.ServiceAction2-3 The Service Action field contains a supported service action of thesupported operation code indicated by the Operation Code field.
