Table 354

+=====================================-============-======-============+ 
|  Command name                       | Operation  | Type |  Subclause | 
|                                     |   code     |      |            | 
|-------------------------------------+------------+------+------------| 
| CHANGE DEFINITION                   |    40h     |   O  |   8.2.1    | 
| GET MESSAGE(6)                      |    08h     |   O  |   8.2.17   | 
| GET MESSAGE(10)                     |    28h     |   O  |  18.2.2    | 
| GET MESSAGE(12)                     |    A8h     |   O  |  18.2.3    | 
| INQUIRY                             |    12h     |   M  |   8.2.5    | 
| LOG SELECT                          |    4Ch     |   O  |   8.2.6    | 
| LOG SENSE                           |    4Dh     |   O  |   8.2.7    | 
| MODE SELECT(6)                      |    15h     |   O  |   8.2.8    | 
| MODE SELECT(10)                     |    55h     |   O  |   8.2.9    | 
| MODE SENSE(6)                       |    1Ah     |   O  |   8.2.10   | 
| MODE SENSE(10)                      |    5Ah     |   O  |   8.2.11   | 
| READ BUFFER                         |    3Ch     |   O  |   8.2.12   | 
| RECEIVE DIAGNOSTIC RESULTS          |    1Ch     |   O  |   8.2.13   | 
| REQUEST SENSE                       |    03h     |   M  |   8.2.14   | 
| SEND DIAGNOSTIC                     |    1Dh     |   M  |   8.2.15   | 
| SEND MESSAGE(6)                     |    0Ah     |   M  |  18.2.4    | 
| SEND MESSAGE(10)                    |    2Ah     |   O  |  18.2.5    | 
| SEND MESSAGE(12)                    |    AAh     |   O  |  18.2.6    | 
| TEST UNIT READY                     |    00h     |   M  |   8.2.16   | 
| WRITE BUFFER                        |    3Bh     |   O  |   8.2.17   | 
|----------------------------------------------------------------------| 
|Key:  M = command implementation is mandatory.                        | 
|      O = command implementation is optional.                         | 
+======================================================================+