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uchar_t es_valid :1; /* Sense data is valid */
uchar_t es_class :3; /* Error Class- fixed at 0x7 */
uchar_t es_code :4; /* Vendor Unique error code */
uchar_t es_segnum; /* Segment number: for COPY cmd only */
uchar_t es_filmk :1; /* File Mark Detected */
uchar_t es_eom :1; /* End of Media */
uchar_t es_ili :1; /* Incorrect Length Indicator */
uchar_t es_key :4; /* Sense key */
uchar_t es_info_1; /* Information byte 1 */
uchar_t es_info_2; /* Information byte 2 */
uchar_t es_info_3; /* Information byte 3 */
uchar_t es_info_4; /* Information byte 4 */
uchar_t es_add_len; /* Number of additional bytes */
uchar_t es_cmd_info[4]; /* Command specific information */
uchar_t es_add_code; /* Additional Sense Code */
uchar_t es_qual_code; /* Additional Sense Code Qualifier */
uchar_t es_fru_code; /* Field Replaceable Unit Code */
uchar_t es_skey_specific[3]; /* Sense Key Specific information */
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es_valid, if set, indicates that the information field contains valid information.
es_class should be 0x7.
es_code is either 0x0 or 0x1.
es_segnum contains the number of the current segment descriptor if the REQUEST SENSE command is in response to a COPY, COMPARE, and COPY AND VERIFY command.
es_filmk, if set, indicates that the current command had read a file mark or set mark (sequential access devices only).
es_eom, if set, indicates that an end-of-medium condition exists (sequential access and printer devices only).
es_ili, if set, indicates that the requested logical block length did not match the logical block length of the data on the medium.
es_key indicates generic information describing an error or exception condition. The following sense keys are defined:
-
KEY_NO_SENSE
- Indicates that
there is no specific sense key information to be reported.
-
KEY_RECOVERABLE_ERROR
- Indicates that the last command completed successfully with some recovery action performed by the target.
-
KEY_NOT_READY
- Indicates that the logical unit addressed cannot be accessed.
-
KEY_MEDIUM_ERROR
- Indicates that the command terminated with a non-recovered error condition that was probably caused by a flaw on the medium or an error in the recorded data.
-
KEY_HARDWARE_ERROR
- Indicates that the target detected a non-recoverable hardware failure while performing the command or during a self test.
-
KEY_ILLEGAL_REQUEST
- Indicates that there was an illegal parameter in the CDB or in the additional parameters supplied as data for some commands.
-
KEY_UNIT_ATTENTION
- Indicates that the removable medium might have been changed or the target has been reset.
-
KEY_WRITE_PROTECT/KEY_DATA_PROTECT
- Indicates that a command that reads or writes the medium was attempted on a block that is protected from this operation.
-
KEY_BLANK_CHECK
- Indicates that a write-once device or a sequential access device encountered blank medium or format-defined end-of-data indication while reading or a write-once device encountered a non-blank medium while
writing.
-
KEY_VENDOR_UNIQUE
- This sense key is available for reporting vendor-specific conditions.
-
KEY_COPY_ABORTED
- Indicates that a COPY, COMPARE, and COPY AND VERIFY command was aborted.
-
KEY_ABORTED_COMMAND
- Indicates that the target aborted the command.
-
KEY_EQUAL
- Indicates that a SEARCH DATA command has satisfied an equal comparison.
-
KEY_VOLUME_OVERFLOW
- Indicates that a buffered peripheral device has reached the end-of-partition and data might remain in the buffer that has not been written to the medium.
-
KEY_MISCOMPARE
- Indicates that the source data did not match the data read from the medium.
-
KEY_RESERVE
- Indicates that the target is currently reserved by a different initiator.
es_info_{1,2,3,4} is device-type or command specific.
es_add_len indicates the number of additional sense bytes to follow.
es_cmd_info contains information that depends on the command that was executed.
es_add_code (ASC) indicates further information related to the error or exception condition reported in the sense key field.
es_qual_code (ASCQ) indicates detailed information related to the additional sense code.
es_fru_code (FRU) indicates a device-specific mechanism to unit that has failed.
es_skey_specific is defined when the value of the sense-key specific valid bit (bit 7) is 1. This field is reserved for sense keys not defined above.
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