mingw-w64-headers/ddk/include/ddk/scsi.h - mingw-w64 - Git at Google

 /*
  * scsi.h
  *
  * SCSI port and class interface.
  *
  * This file is part of the w32api package.
  *
  * Contributors:
  *   Created by Casper S. Hornstrup <chorns@users.sourceforge.net>
  *
  * THIS SOFTWARE IS NOT COPYRIGHTED
  *
  * This source code is offered for use in the public domain. You may
  * use, modify or distribute it freely.
  *
  * This code is distributed in the hope that it will be useful but
  * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  * DISCLAIMED. This includes but is not limited to warranties of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  *
  */

 #ifndef _NTSCSI_
 #define _NTSCSI_

 #ifdef __cplusplus
 extern "C" {
 #endif

 #ifndef _NTSCSI_USER_MODE_
 #include "srb.h"
 #endif

 #define NOTIFICATION_OPERATIONAL_CHANGE_CLASS_MASK    0x02
 #define NOTIFICATION_POWER_MANAGEMENT_CLASS_MASK      0x04
 #define NOTIFICATION_EXTERNAL_REQUEST_CLASS_MASK      0x08
 #define NOTIFICATION_MEDIA_STATUS_CLASS_MASK          0x10
 #define NOTIFICATION_MULTI_HOST_CLASS_MASK            0x20
 #define NOTIFICATION_DEVICE_BUSY_CLASS_MASK           0x40


 #define NOTIFICATION_NO_CLASS_EVENTS                  0x0
 #define NOTIFICATION_OPERATIONAL_CHANGE_CLASS_EVENTS  0x1
 #define NOTIFICATION_POWER_MANAGEMENT_CLASS_EVENTS    0x2
 #define NOTIFICATION_EXTERNAL_REQUEST_CLASS_EVENTS    0x3
 #define NOTIFICATION_MEDIA_STATUS_CLASS_EVENTS        0x4
 #define NOTIFICATION_MULTI_HOST_CLASS_EVENTS          0x5
 #define NOTIFICATION_DEVICE_BUSY_CLASS_EVENTS         0x6

 #define NOTIFICATION_OPERATIONAL_EVENT_NO_CHANGE         0x0
 #define NOTIFICATION_OPERATIONAL_EVENT_CHANGE_REQUESTED  0x1
 #define NOTIFICATION_OPERATIONAL_EVENT_CHANGE_OCCURRED   0x2

 #define NOTIFICATION_OPERATIONAL_STATUS_AVAILABLE        0x0
 #define NOTIFICATION_OPERATIONAL_STATUS_TEMPORARY_BUSY   0x1
 #define NOTIFICATION_OPERATIONAL_STATUS_EXTENDED_BUSY    0x2

 #define NOTIFICATION_OPERATIONAL_OPCODE_NONE             0x0
 #define NOTIFICATION_OPERATIONAL_OPCODE_FEATURE_CHANGE   0x1
 #define NOTIFICATION_OPERATIONAL_OPCODE_FEATURE_ADDED    0x2
 #define NOTIFICATION_OPERATIONAL_OPCODE_UNIT_RESET       0x3
 #define NOTIFICATION_OPERATIONAL_OPCODE_FIRMWARE_CHANGED 0x4
 #define NOTIFICATION_OPERATIONAL_OPCODE_INQUIRY_CHANGED  0x5

 #define NOTIFICATION_POWER_EVENT_NO_CHANGE          0x0
 #define NOTIFICATION_POWER_EVENT_CHANGE_SUCCEEDED   0x1
 #define NOTIFICATION_POWER_EVENT_CHANGE_FAILED      0x2

 #define NOTIFICATION_POWER_STATUS_ACTIVE            0x1
 #define NOTIFICATION_POWER_STATUS_IDLE              0x2
 #define NOTIFICATION_POWER_STATUS_STANDBY           0x3
 #define NOTIFICATION_POWER_STATUS_SLEEP             0x4

 #define NOTIFICATION_MEDIA_EVENT_NO_EVENT           0x0
 #define NOTIFICATION_EXTERNAL_EVENT_NO_CHANGE       0x0
 #define NOTIFICATION_EXTERNAL_EVENT_BUTTON_DOWN     0x1
 #define NOTIFICATION_EXTERNAL_EVENT_BUTTON_UP       0x2
 #define NOTIFICATION_EXTERNAL_EVENT_EXTERNAL        0x3

 #define NOTIFICATION_EXTERNAL_STATUS_READY          0x0
 #define NOTIFICATION_EXTERNAL_STATUS_PREVENT        0x1

 #define NOTIFICATION_EXTERNAL_REQUEST_NONE          0x0000
 #define NOTIFICATION_EXTERNAL_REQUEST_QUEUE_OVERRUN 0x0001
 #define NOTIFICATION_EXTERNAL_REQUEST_PLAY          0x0101
 #define NOTIFICATION_EXTERNAL_REQUEST_REWIND_BACK   0x0102
 #define NOTIFICATION_EXTERNAL_REQUEST_FAST_FORWARD  0x0103
 #define NOTIFICATION_EXTERNAL_REQUEST_PAUSE         0x0104
 #define NOTIFICATION_EXTERNAL_REQUEST_STOP          0x0106
 #define NOTIFICATION_EXTERNAL_REQUEST_ASCII_LOW     0x0200
 #define NOTIFICATION_EXTERNAL_REQUEST_ASCII_HIGH    0x02ff

 #define NOTIFICATION_MEDIA_EVENT_NO_CHANGE          0x0
 #define NOTIFICATION_MEDIA_EVENT_EJECT_REQUEST      0x1
 #define NOTIFICATION_MEDIA_EVENT_NEW_MEDIA          0x2
 #define NOTIFICATION_MEDIA_EVENT_MEDIA_REMOVAL      0x3
 #define NOTIFICATION_MEDIA_EVENT_MEDIA_CHANGE       0x4

 #define NOTIFICATION_BUSY_EVENT_NO_EVENT               0x0
 #define NOTIFICATION_MULTI_HOST_EVENT_NO_CHANGE        0x0
 #define NOTIFICATION_MULTI_HOST_EVENT_CONTROL_REQUEST  0x1
 #define NOTIFICATION_MULTI_HOST_EVENT_CONTROL_GRANT    0x2
 #define NOTIFICATION_MULTI_HOST_EVENT_CONTROL_RELEASE  0x3

 #define NOTIFICATION_MULTI_HOST_STATUS_READY           0x0
 #define NOTIFICATION_MULTI_HOST_STATUS_PREVENT         0x1

 #define NOTIFICATION_MULTI_HOST_PRIORITY_NO_REQUESTS   0x0
 #define NOTIFICATION_MULTI_HOST_PRIORITY_LOW           0x1
 #define NOTIFICATION_MULTI_HOST_PRIORITY_MEDIUM        0x2
 #define NOTIFICATION_MULTI_HOST_PRIORITY_HIGH          0x3

 #define NOTIFICATION_BUSY_EVENT_NO_EVENT            0x0
 #define NOTIFICATION_BUSY_EVENT_NO_CHANGE           0x0
 #define NOTIFICATION_BUSY_EVENT_BUSY                0x1
 #define NOTIFICATION_BUSY_EVENT_LO_CHANGE           0x2

 #define NOTIFICATION_BUSY_STATUS_NO_EVENT           0x0
 #define NOTIFICATION_BUSY_STATUS_POWER              0x1
 #define NOTIFICATION_BUSY_STATUS_IMMEDIATE          0x2
 #define NOTIFICATION_BUSY_STATUS_DEFERRED           0x3

 #define SECURITY_PROTOCOL_IEEE1667  0xEE

 #define DVD_FORMAT_LEAD_IN          0x00
 #define DVD_FORMAT_COPYRIGHT        0x01
 #define DVD_FORMAT_DISK_KEY         0x02
 #define DVD_FORMAT_BCA              0x03
 #define DVD_FORMAT_MANUFACTURING    0x04

 #define DVD_REPORT_AGID            0x00
 #define DVD_CHALLENGE_KEY          0x01
 #define DVD_KEY_1                  0x02
 #define DVD_KEY_2                  0x03
 #define DVD_TITLE_KEY              0x04
 #define DVD_REPORT_ASF             0x05
 #define DVD_INVALIDATE_AGID        0x3F

 #define BLANK_FULL              0x0
 #define BLANK_MINIMAL           0x1
 #define BLANK_TRACK             0x2
 #define BLANK_UNRESERVE_TRACK   0x3
 #define BLANK_TAIL              0x4
 #define BLANK_UNCLOSE_SESSION   0x5
 #define BLANK_SESSION           0x6

 #define CD_EXPECTED_SECTOR_ANY          0x0
 #define CD_EXPECTED_SECTOR_CDDA         0x1
 #define CD_EXPECTED_SECTOR_MODE1        0x2
 #define CD_EXPECTED_SECTOR_MODE2        0x3
 #define CD_EXPECTED_SECTOR_MODE2_FORM1  0x4
 #define CD_EXPECTED_SECTOR_MODE2_FORM2  0x5

 #define DISK_STATUS_EMPTY       0x00
 #define DISK_STATUS_INCOMPLETE  0x01
 #define DISK_STATUS_COMPLETE    0x02
 #define DISK_STATUS_OTHERS      0x03

 #define LAST_SESSION_EMPTY              0x00
 #define LAST_SESSION_INCOMPLETE         0x01
 #define LAST_SESSION_RESERVED_DAMAGED   0x02
 #define LAST_SESSION_COMPLETE           0x03

 #define DISK_TYPE_CDDA          0x00
 #define DISK_TYPE_CDI           0x10
 #define DISK_TYPE_XA            0x20
 #define DISK_TYPE_UNDEFINED     0xFF

 #define DISC_BGFORMAT_STATE_NONE        0x0
 #define DISC_BGFORMAT_STATE_INCOMPLETE  0x1
 #define DISC_BGFORMAT_STATE_RUNNING     0x2
 #define DISC_BGFORMAT_STATE_COMPLETE    0x3

 #define DATA_BLOCK_MODE0    0x0
 #define DATA_BLOCK_MODE1    0x1
 #define DATA_BLOCK_MODE2    0x2

 /* READ_TOC formats */
 #define READ_TOC_FORMAT_TOC         0x00
 #define READ_TOC_FORMAT_SESSION     0x01
 #define READ_TOC_FORMAT_FULL_TOC    0x02
 #define READ_TOC_FORMAT_PMA         0x03
 #define READ_TOC_FORMAT_ATIP        0x04

 #define CDB6GENERIC_LENGTH                   6
 #define CDB10GENERIC_LENGTH                  10
 #define CDB12GENERIC_LENGTH                  12

 #define SETBITON                             1
 #define SETBITOFF                            0

 /* Mode Sense/Select page constants */
 #define MODE_PAGE_VENDOR_SPECIFIC       0x00
 #define MODE_PAGE_ERROR_RECOVERY        0x01
 #define MODE_PAGE_DISCONNECT            0x02
 #define MODE_PAGE_FORMAT_DEVICE         0x03
 #define MODE_PAGE_MRW                   0x03
 #define MODE_PAGE_RIGID_GEOMETRY        0x04
 #define MODE_PAGE_FLEXIBILE             0x05
 #define MODE_PAGE_WRITE_PARAMETERS      0x05
 #define MODE_PAGE_VERIFY_ERROR          0x07
 #define MODE_PAGE_CACHING               0x08
 #define MODE_PAGE_PERIPHERAL            0x09
 #define MODE_PAGE_CONTROL               0x0A
 #define MODE_PAGE_MEDIUM_TYPES          0x0B
 #define MODE_PAGE_NOTCH_PARTITION       0x0C
 #define MODE_PAGE_CD_AUDIO_CONTROL      0x0E
 #define MODE_PAGE_DATA_COMPRESS         0x0F
 #define MODE_PAGE_DEVICE_CONFIG         0x10
 #define MODE_PAGE_XOR_CONTROL           0x10
 #define MODE_PAGE_MEDIUM_PARTITION      0x11
 #define MODE_PAGE_ENCLOSURE_SERVICES_MANAGEMENT 0x14
 #define MODE_PAGE_EXTENDED              0x15
 #define MODE_PAGE_EXTENDED_DEVICE_SPECIFIC 0x16
 #define MODE_PAGE_CDVD_FEATURE_SET      0x18
 #define MODE_PAGE_PROTOCOL_SPECIFIC_LUN 0x18
 #define MODE_PAGE_PROTOCOL_SPECIFIC_PORT 0x19
 #define MODE_PAGE_POWER_CONDITION       0x1A
 #define MODE_PAGE_LUN_MAPPING           0x1B
 #define MODE_PAGE_FAULT_REPORTING       0x1C
 #define MODE_PAGE_CDVD_INACTIVITY       0x1D
 #define MODE_PAGE_ELEMENT_ADDRESS       0x1D
 #define MODE_PAGE_TRANSPORT_GEOMETRY    0x1E
 #define MODE_PAGE_DEVICE_CAPABILITIES   0x1F
 #define MODE_PAGE_CAPABILITIES          0x2A

 #define MODE_SENSE_RETURN_ALL           0x3f

 #define MODE_SENSE_CURRENT_VALUES       0x00
 #define MODE_SENSE_CHANGEABLE_VALUES    0x40
 #define MODE_SENSE_DEFAULT_VAULES       0x80
 #define MODE_SENSE_SAVED_VALUES         0xc0

 /* SCSI CDB operation codes */
 #define SCSIOP_TEST_UNIT_READY          0x00
 #define SCSIOP_REZERO_UNIT              0x01
 #define SCSIOP_REWIND                   0x01
 #define SCSIOP_REQUEST_BLOCK_ADDR       0x02
 #define SCSIOP_REQUEST_SENSE            0x03
 #define SCSIOP_FORMAT_UNIT              0x04
 #define SCSIOP_READ_BLOCK_LIMITS        0x05
 #define SCSIOP_REASSIGN_BLOCKS          0x07
 #define SCSIOP_INIT_ELEMENT_STATUS      0x07
 #define SCSIOP_READ6                    0x08
 #define SCSIOP_RECEIVE                  0x08
 #define SCSIOP_WRITE6                   0x0A
 #define SCSIOP_PRINT                    0x0A
 #define SCSIOP_SEND                     0x0A
 #define SCSIOP_SEEK6                    0x0B
 #define SCSIOP_TRACK_SELECT             0x0B
 #define SCSIOP_SLEW_PRINT               0x0B
 #define SCSIOP_SET_CAPACITY             0x0B
 #define SCSIOP_SEEK_BLOCK               0x0C
 #define SCSIOP_PARTITION                0x0D
 #define SCSIOP_READ_REVERSE             0x0F
 #define SCSIOP_WRITE_FILEMARKS          0x10
 #define SCSIOP_FLUSH_BUFFER             0x10
 #define SCSIOP_SPACE                    0x11
 #define SCSIOP_INQUIRY                  0x12
 #define SCSIOP_VERIFY6                  0x13
 #define SCSIOP_RECOVER_BUF_DATA         0x14
 #define SCSIOP_MODE_SELECT              0x15
 #define SCSIOP_RESERVE_UNIT             0x16
 #define SCSIOP_RELEASE_UNIT             0x17
 #define SCSIOP_COPY                     0x18
 #define SCSIOP_ERASE                    0x19
 #define SCSIOP_MODE_SENSE               0x1A
 #define SCSIOP_START_STOP_UNIT          0x1B
 #define SCSIOP_STOP_PRINT               0x1B
 #define SCSIOP_LOAD_UNLOAD              0x1B
 #define SCSIOP_RECEIVE_DIAGNOSTIC       0x1C
 #define SCSIOP_SEND_DIAGNOSTIC          0x1D
 #define SCSIOP_MEDIUM_REMOVAL           0x1E

 #define SCSIOP_READ_FORMATTED_CAPACITY  0x23
 #define SCSIOP_READ_CAPACITY            0x25
 #define SCSIOP_READ                     0x28
 #define SCSIOP_WRITE                    0x2A
 #define SCSIOP_SEEK                     0x2B
 #define SCSIOP_LOCATE                   0x2B
 #define SCSIOP_POSITION_TO_ELEMENT      0x2B
 #define SCSIOP_WRITE_VERIFY             0x2E
 #define SCSIOP_VERIFY                   0x2F
 #define SCSIOP_SEARCH_DATA_HIGH         0x30
 #define SCSIOP_SEARCH_DATA_EQUAL        0x31
 #define SCSIOP_SEARCH_DATA_LOW          0x32
 #define SCSIOP_SET_LIMITS               0x33
 #define SCSIOP_READ_POSITION            0x34
 #define SCSIOP_SYNCHRONIZE_CACHE        0x35
 #define SCSIOP_COMPARE                  0x39
 #define SCSIOP_COPY_COMPARE             0x3A
 #define SCSIOP_WRITE_DATA_BUFF          0x3B
 #define SCSIOP_READ_DATA_BUFF           0x3C
 #define SCSIOP_WRITE_LONG               0x3F
 #define SCSIOP_CHANGE_DEFINITION        0x40
 #define SCSIOP_WRITE_SAME               0x41
 #define SCSIOP_READ_SUB_CHANNEL         0x42
 #define SCSIOP_UNMAP                    0x42
 #define SCSIOP_READ_TOC                 0x43
 #define SCSIOP_READ_HEADER              0x44
 #define SCSIOP_REPORT_DENSITY_SUPPORT   0x44
 #define SCSIOP_PLAY_AUDIO               0x45
 #define SCSIOP_GET_CONFIGURATION        0x46
 #define SCSIOP_PLAY_AUDIO_MSF           0x47
 #define SCSIOP_PLAY_TRACK_INDEX         0x48
 #define SCSIOP_SANITIZE                 0x48
 #define SCSIOP_PLAY_TRACK_RELATIVE      0x49
 #define SCSIOP_GET_EVENT_STATUS         0x4A
 #define SCSIOP_PAUSE_RESUME             0x4B
 #define SCSIOP_LOG_SELECT               0x4C
 #define SCSIOP_LOG_SENSE                0x4D
 #define SCSIOP_STOP_PLAY_SCAN           0x4E
 #define SCSIOP_XDWRITE                  0x50
 #define SCSIOP_XPWRITE                  0x51
 #define SCSIOP_READ_DISK_INFORMATION    0x51
 #define SCSIOP_READ_DISC_INFORMATION    0x51
 #define SCSIOP_READ_TRACK_INFORMATION   0x52
 #define SCSIOP_XDWRITE_READ             0x53
 #define SCSIOP_RESERVE_TRACK_RZONE      0x53
 #define SCSIOP_SEND_OPC_INFORMATION     0x54
 #define SCSIOP_MODE_SELECT10            0x55
 #define SCSIOP_RESERVE_UNIT10           0x56
 #define SCSIOP_RESERVE_ELEMENT          0x56
 #define SCSIOP_RELEASE_UNIT10           0x57
 #define SCSIOP_RELEASE_ELEMENT          0x57
 #define SCSIOP_REPAIR_TRACK             0x58
 #define SCSIOP_MODE_SENSE10             0x5A
 #define SCSIOP_CLOSE_TRACK_SESSION      0x5B
 #define SCSIOP_READ_BUFFER_CAPACITY     0x5C
 #define SCSIOP_SEND_CUE_SHEET           0x5D
 #define SCSIOP_PERSISTENT_RESERVE_IN    0x5E
 #define SCSIOP_PERSISTENT_RESERVE_OUT   0x5F

 #define SCSIOP_REPORT_LUNS              0xA0
 #define SCSIOP_BLANK                    0xA1
 #define SCSIOP_ATA_PASSTHROUGH12        0xA1
 #define SCSIOP_SEND_EVENT               0xA2
 #define SCSIOP_SECURITY_PROTOCOL_IN     0xA2
 #define SCSIOP_SEND_KEY                 0xA3
 #define SCSIOP_MAINTENANCE_IN           0xA3
 #define SCSIOP_REPORT_KEY               0xA4
 #define SCSIOP_MAINTENANCE_OUT          0xA4
 #define SCSIOP_MOVE_MEDIUM              0xA5
 #define SCSIOP_LOAD_UNLOAD_SLOT         0xA6
 #define SCSIOP_EXCHANGE_MEDIUM          0xA6
 #define SCSIOP_SET_READ_AHEAD           0xA7
 #define SCSIOP_MOVE_MEDIUM_ATTACHED     0xA7
 #define SCSIOP_READ12                   0xA8
 #define SCSIOP_GET_MESSAGE              0xA8
 #define SCSIOP_SERVICE_ACTION_OUT12     0xA9
 #define SCSIOP_WRITE12                  0xAA
 #define SCSIOP_SEND_MESSAGE             0xAB
 #define SCSIOP_SERVICE_ACTION_IN12      0xAB
 #define SCSIOP_GET_PERFORMANCE          0xAC
 #define SCSIOP_READ_DVD_STRUCTURE       0xAD
 #define SCSIOP_WRITE_VERIFY12           0xAE
 #define SCSIOP_VERIFY12                 0xAF
 #define SCSIOP_SEARCH_DATA_HIGH12       0xB0
 #define SCSIOP_SEARCH_DATA_EQUAL12      0xB1
 #define SCSIOP_SEARCH_DATA_LOW12        0xB2
 #define SCSIOP_SET_LIMITS12             0xB3
 #define SCSIOP_READ_ELEMENT_STATUS_ATTACHED 0xB4
 #define SCSIOP_REQUEST_VOL_ELEMENT      0xB5
 #define SCSIOP_SECURITY_PROTOCOL_OUT    0xB5
 #define SCSIOP_SEND_VOLUME_TAG          0xB6
 #define SCSIOP_SET_STREAMING            0xB6
 #define SCSIOP_READ_DEFECT_DATA         0xB7
 #define SCSIOP_READ_ELEMENT_STATUS      0xB8
 #define SCSIOP_READ_CD_MSF              0xB9
 #define SCSIOP_SCAN_CD                  0xBA
 #define SCSIOP_REDUNDANCY_GROUP_IN      0xBA
 #define SCSIOP_SET_CD_SPEED             0xBB
 #define SCSIOP_REDUNDANCY_GROUP_OUT     0xBB
 #define SCSIOP_PLAY_CD                  0xBC
 #define SCSIOP_SPARE_IN                 0xBC
 #define SCSIOP_MECHANISM_STATUS         0xBD
 #define SCSIOP_SPARE_OUT                0xBD
 #define SCSIOP_READ_CD                  0xBE
 #define SCSIOP_VOLUME_SET_IN            0xBE
 #define SCSIOP_SEND_DVD_STRUCTURE       0xBF
 #define SCSIOP_VOLUME_SET_OUT           0xBF
 #define SCSIOP_INIT_ELEMENT_RANGE       0xE7

 #define SCSIOP_XDWRITE_EXTENDED16       0x80
 #define SCSIOP_WRITE_FILEMARKS16        0x80
 #define SCSIOP_REBUILD16                0x81
 #define SCSIOP_READ_REVERSE16           0x81
 #define SCSIOP_REGENERATE16             0x82
 #define SCSIOP_EXTENDED_COPY            0x83
 #define SCSIOP_POPULATE_TOKEN           0x83
 #define SCSIOP_WRITE_USING_TOKEN        0x83
 #define SCSIOP_RECEIVE_COPY_RESULTS     0x84
 #define SCSIOP_RECEIVE_ROD_TOKEN_INFORMATION 0x84
 #define SCSIOP_ATA_PASSTHROUGH16        0x85
 #define SCSIOP_ACCESS_CONTROL_IN        0x86
 #define SCSIOP_ACCESS_CONTROL_OUT       0x87
 #define SCSIOP_READ16                   0x88
 #define SCSIOP_COMPARE_AND_WRITE        0x89
 #define SCSIOP_WRITE16                  0x8A
 #define SCSIOP_READ_ATTRIBUTES          0x8C
 #define SCSIOP_WRITE_ATTRIBUTES         0x8D
 #define SCSIOP_WRITE_VERIFY16           0x8E
 #define SCSIOP_VERIFY16                 0x8F
 #define SCSIOP_PREFETCH16               0x90
 #define SCSIOP_SYNCHRONIZE_CACHE16      0x91
 #define SCSIOP_SPACE16                  0x91
 #define SCSIOP_LOCK_UNLOCK_CACHE16      0x92
 #define SCSIOP_LOCATE16                 0x92
 #define SCSIOP_WRITE_SAME16             0x93
 #define SCSIOP_ERASE16                  0x93
 #define SCSIOP_ZBC_OUT                  0x94
 #define SCSIOP_ZBC_IN                   0x95
 #define SCSIOP_READ_DATA_BUFF16         0x9B
 #define SCSIOP_READ_CAPACITY16          0x9E
 #define SCSIOP_GET_LBA_STATUS           0x9E
 #define SCSIOP_GET_PHYSICAL_ELEMENT_STATUS 0x9E
 #define SCSIOP_REMOVE_ELEMENT_AND_TRUNCATE 0x9E
 #define SCSIOP_SERVICE_ACTION_IN16      0x9E
 #define SCSIOP_SERVICE_ACTION_OUT16     0x9F

 #define SCSIOP_OPERATION32              0x7F

 #define SERVICE_ACTION_OVERWRITE        0x01
 #define SERVICE_ACTION_BLOCK_ERASE      0x02
 #define SERVICE_ACTION_CRYPTO_ERASE     0x03
 #define SERVICE_ACTION_EXIT_FAILURE     0x1f

 #define SERVICE_ACTION_XDWRITE          0x0004
 #define SERVICE_ACTION_XPWRITE          0x0006
 #define SERVICE_ACTION_XDWRITEREAD      0x0007
 #define SERVICE_ACTION_WRITE            0x000B
 #define SERVICE_ACTION_WRITE_VERIFY     0x000C
 #define SERVICE_ACTION_WRITE_SAME       0x000D
 #define SERVICE_ACTION_ORWRITE          0x000E

 #define SERVICE_ACTION_POPULATE_TOKEN     0x10
 #define SERVICE_ACTION_WRITE_USING_TOKEN 0x11

 #define SERVICE_ACTION_RECEIVE_TOKEN_INFORMATION 0x07

 #define SERVICE_ACTION_CLOSE_ZONE           0x01
 #define SERVICE_ACTION_FINISH_ZONE          0x02
 #define SERVICE_ACTION_OPEN_ZONE            0x03
 #define SERVICE_ACTION_RESET_WRITE_POINTER  0x04

 #define SERVICE_ACTION_REPORT_ZONES         0x00

 #define REPORT_ZONES_OPTION_LIST_ALL_ZONES               0x00
 #define REPORT_ZONES_OPTION_LIST_EMPTY_ZONES             0x01
 #define REPORT_ZONES_OPTION_LIST_IMPLICITLY_OPENED_ZONES 0x02
 #define REPORT_ZONES_OPTION_LIST_EXPLICITLY_OPENED_ZONES 0x03
 #define REPORT_ZONES_OPTION_LIST_CLOSED_ZONES            0x04
 #define REPORT_ZONES_OPTION_LIST_FULL_ZONES              0x05
 #define REPORT_ZONES_OPTION_LIST_READ_ONLY_ZONES         0x06
 #define REPORT_ZONES_OPTION_LIST_OFFLINE_ZONES           0x07
 #define REPORT_ZONES_OPTION_LIST_RWP_ZONES               0x10
 #define REPORT_ZONES_OPTION_LIST_NON_SEQUENTIAL_WRITE_RESOURCES_ACTIVE_ZONES 0x11
 #define REPORT_ZONES_OPTION_LIST_NOT_WRITE_POINTER_ZONES 0x3F

 #define SERVICE_ACTION_READ_CAPACITY16              0x10
 #define SERVICE_ACTION_GET_LBA_STATUS               0x12
 #define SERVICE_ACTION_GET_PHYSICAL_ELEMENT_STATUS  0x17
 #define SERVICE_ACTION_REMOVE_ELEMENT_AND_TRUNCATE  0x18
 #define SERVICE_ACTION_REPORT_TIMESTAMP             0x0F
 #define SERVICE_ACTION_SET_TIMESTAMP                0x0F

 #define CDB_RETURN_ON_COMPLETION   0
 #define CDB_RETURN_IMMEDIATE       1

 #define CDB_FORCE_MEDIA_ACCESS 0x08

 #define SCSIOP_DENON_EJECT_DISC    0xE6
 #define SCSIOP_DENON_STOP_AUDIO    0xE7
 #define SCSIOP_DENON_PLAY_AUDIO    0xE8
 #define SCSIOP_DENON_READ_TOC      0xE9
 #define SCSIOP_DENON_READ_SUBCODE  0xEB

 #define SCSIMESS_ABORT                0x06
 #define SCSIMESS_ABORT_WITH_TAG       0x0D
 #define SCSIMESS_BUS_DEVICE_RESET     0X0C
 #define SCSIMESS_CLEAR_QUEUE          0X0E
 #define SCSIMESS_COMMAND_COMPLETE     0X00
 #define SCSIMESS_DISCONNECT           0X04
 #define SCSIMESS_EXTENDED_MESSAGE     0X01
 #define SCSIMESS_IDENTIFY             0X80
 #define SCSIMESS_IDENTIFY_WITH_DISCON 0XC0
 #define SCSIMESS_IGNORE_WIDE_RESIDUE  0X23
 #define SCSIMESS_INITIATE_RECOVERY    0X0F
 #define SCSIMESS_INIT_DETECTED_ERROR  0X05
 #define SCSIMESS_LINK_CMD_COMP        0X0A
 #define SCSIMESS_LINK_CMD_COMP_W_FLAG 0X0B
 #define SCSIMESS_MESS_PARITY_ERROR    0X09
 #define SCSIMESS_MESSAGE_REJECT       0X07
 #define SCSIMESS_NO_OPERATION         0X08
 #define SCSIMESS_HEAD_OF_QUEUE_TAG    0X21
 #define SCSIMESS_ORDERED_QUEUE_TAG    0X22
 #define SCSIMESS_SIMPLE_QUEUE_TAG     0X20
 #define SCSIMESS_RELEASE_RECOVERY     0X10
 #define SCSIMESS_RESTORE_POINTERS     0X03
 #define SCSIMESS_SAVE_DATA_POINTER    0X02
 #define SCSIMESS_TERMINATE_IO_PROCESS 0X11

 #define SCSIMESS_MODIFY_DATA_POINTER  0X00
 #define SCSIMESS_SYNCHRONOUS_DATA_REQ 0X01
 #define SCSIMESS_WIDE_DATA_REQUEST    0X03

 #define SCSIMESS_MODIFY_DATA_LENGTH   5
 #define SCSIMESS_SYNCH_DATA_LENGTH    3
 #define SCSIMESS_WIDE_DATA_LENGTH     2

 #define CDB_INQUIRY_EVPD           0x01

 #define LUN0_FORMAT_SAVING_DEFECT_LIST 0
 #define USE_DEFAULTMSB 0
 #define USE_DEFAULTLSB 0

 #define START_UNIT_CODE 0x01
 #define STOP_UNIT_CODE 0x00

 #define OFFSET_VER_DESCRIPTOR_ONE (FIELD_OFFSET(INQUIRYDATA, VersionDescriptors[0]))
 #define OFFSET_VER_DESCRIPTOR_EIGHT (FIELD_OFFSET(INQUIRYDATA, VersionDescriptors[8]))

 /* INQUIRYDATA.DeviceType constants */
 #define DIRECT_ACCESS_DEVICE              0x00
 #define SEQUENTIAL_ACCESS_DEVICE          0x01
 #define PRINTER_DEVICE                    0x02
 #define PROCESSOR_DEVICE                  0x03
 #define WRITE_ONCE_READ_MULTIPLE_DEVICE   0x04
 #define READ_ONLY_DIRECT_ACCESS_DEVICE    0x05
 #define SCANNER_DEVICE                    0x06
 #define OPTICAL_DEVICE                    0x07
 #define MEDIUM_CHANGER                    0x08
 #define COMMUNICATION_DEVICE              0x09
 #define ARRAY_CONTROLLER_DEVICE           0x0C
 #define SCSI_ENCLOSURE_DEVICE             0x0D
 #define REDUCED_BLOCK_DEVICE              0x0E
 #define OPTICAL_CARD_READER_WRITER_DEVICE 0x0F
 #define BRIDGE_CONTROLLER_DEVICE          0x10
 #define OBJECT_BASED_STORAGE_DEVICE       0x11
 #define HOST_MANAGED_ZONED_BLOCK_DEVICE   0x14
 #define UNKNOWN_OR_NO_DEVICE              0x1F
 #define LOGICAL_UNIT_NOT_PRESENT_DEVICE   0x7F

 #define DEVICE_QUALIFIER_ACTIVE           0x00
 #define DEVICE_QUALIFIER_NOT_ACTIVE       0x01
 #define DEVICE_QUALIFIER_NOT_SUPPORTED    0x03

 /* INQUIRYDATA.DeviceTypeQualifier constants */
 #define DEVICE_CONNECTED 0x00

 #define SCSISTAT_GOOD                     0x00
 #define SCSISTAT_CHECK_CONDITION          0x02
 #define SCSISTAT_CONDITION_MET            0x04
 #define SCSISTAT_BUSY                     0x08
 #define SCSISTAT_INTERMEDIATE             0x10
 #define SCSISTAT_INTERMEDIATE_COND_MET    0x14
 #define SCSISTAT_RESERVATION_CONFLICT     0x18
 #define SCSISTAT_COMMAND_TERMINATED       0x22
 #define SCSISTAT_QUEUE_FULL               0x28

 #define VPD_MAX_BUFFER_SIZE                 0xff

 #define VPD_SUPPORTED_PAGES                 0x00
 #define VPD_SERIAL_NUMBER                   0x80
 #define VPD_DEVICE_IDENTIFIERS              0x83
 #define VPD_MEDIA_SERIAL_NUMBER             0x84
 #define VPD_SOFTWARE_INTERFACE_IDENTIFIERS  0x84
 #define VPD_NETWORK_MANAGEMENT_ADDRESSES    0x85
 #define VPD_EXTENDED_INQUIRY_DATA           0x86
 #define VPD_MODE_PAGE_POLICY                0x87
 #define VPD_SCSI_PORTS                      0x88

 #define RESERVATION_ACTION_READ_KEYS                    0x00
 #define RESERVATION_ACTION_READ_RESERVATIONS            0x01

 #define RESERVATION_ACTION_REGISTER                     0x00
 #define RESERVATION_ACTION_RESERVE                      0x01
 #define RESERVATION_ACTION_RELEASE                      0x02
 #define RESERVATION_ACTION_CLEAR                        0x03
 #define RESERVATION_ACTION_PREEMPT                      0x04
 #define RESERVATION_ACTION_PREEMPT_ABORT                0x05
 #define RESERVATION_ACTION_REGISTER_IGNORE_EXISTING     0x06

 #define RESERVATION_SCOPE_LU                            0x00
 #define RESERVATION_SCOPE_ELEMENT                       0x02

 #define RESERVATION_TYPE_WRITE_EXCLUSIVE                0x01
 #define RESERVATION_TYPE_EXCLUSIVE                      0x03
 #define RESERVATION_TYPE_WRITE_EXCLUSIVE_REGISTRANTS    0x05
 #define RESERVATION_TYPE_EXCLUSIVE_REGISTRANTS          0x06

 #define SENSE_BUFFER_SIZE              18

 #define MAX_SENSE_BUFFER_SIZE          255

 #define MAX_ADDITIONAL_SENSE_BYTES (MAX_SENSE_BUFFER_SIZE - SENSE_BUFFER_SIZE)

 /* Sense codes */
 #define SCSI_SENSE_NO_SENSE               0x00
 #define SCSI_SENSE_RECOVERED_ERROR        0x01
 #define SCSI_SENSE_NOT_READY              0x02
 #define SCSI_SENSE_MEDIUM_ERROR           0x03
 #define SCSI_SENSE_HARDWARE_ERROR         0x04
 #define SCSI_SENSE_ILLEGAL_REQUEST        0x05
 #define SCSI_SENSE_UNIT_ATTENTION         0x06
 #define SCSI_SENSE_DATA_PROTECT           0x07
 #define SCSI_SENSE_BLANK_CHECK            0x08
 #define SCSI_SENSE_UNIQUE                 0x09
 #define SCSI_SENSE_COPY_ABORTED           0x0A
 #define SCSI_SENSE_ABORTED_COMMAND        0x0B
 #define SCSI_SENSE_EQUAL                  0x0C
 #define SCSI_SENSE_VOL_OVERFLOW           0x0D
 #define SCSI_SENSE_MISCOMPARE             0x0E
 #define SCSI_SENSE_RESERVED               0x0F

 /* Additional tape bit */
 #define SCSI_ILLEGAL_LENGTH               0x20
 #define SCSI_EOM                          0x40
 #define SCSI_FILE_MARK                    0x80

 /* Additional Sense codes */
 #define SCSI_ADSENSE_NO_SENSE                              0x00
 #define SCSI_ADSENSE_NO_SEEK_COMPLETE                      0x02
 #define SCSI_ADSENSE_LUN_NOT_READY                         0x04
 #define SCSI_ADSENSE_LUN_COMMUNICATION                     0x08
 #define SCSI_ADSENSE_WRITE_ERROR                           0x0C
 #define SCSI_ADSENSE_TRACK_ERROR                           0x14
 #define SCSI_ADSENSE_SEEK_ERROR                            0x15
 #define SCSI_ADSENSE_REC_DATA_NOECC                        0x17
 #define SCSI_ADSENSE_REC_DATA_ECC                          0x18
 #define SCSI_ADSENSE_PARAMETER_LIST_LENGTH                 0x1A
 #define SCSI_ADSENSE_ILLEGAL_COMMAND                       0x20
 #define SCSI_ADSENSE_ILLEGAL_BLOCK                         0x21
 #define SCSI_ADSENSE_INVALID_CDB                           0x24
 #define SCSI_ADSENSE_INVALID_LUN                           0x25
 #define SCSI_ADSENSE_INVALID_FIELD_PARAMETER_LIST          0x26
 #define SCSI_ADSENSE_WRITE_PROTECT                         0x27
 #define SCSI_ADSENSE_MEDIUM_CHANGED                        0x28
 #define SCSI_ADSENSE_BUS_RESET                             0x29
 #define SCSI_ADSENSE_PARAMETERS_CHANGED                    0x2A
 #define SCSI_ADSENSE_INSUFFICIENT_TIME_FOR_OPERATION       0x2E
 #define SCSI_ADSENSE_INVALID_MEDIA                         0x30
 #define SCSI_ADSENSE_NO_MEDIA_IN_DEVICE                    0x3a
 #define SCSI_ADSENSE_POSITION_ERROR                        0x3b
 #define SCSI_ADSENSE_OPERATING_CONDITIONS_CHANGED          0x3f
 #define SCSI_ADSENSE_OPERATOR_REQUEST                      0x5a
 #define SCSI_ADSENSE_FAILURE_PREDICTION_THRESHOLD_EXCEEDED 0x5d
 #define SCSI_ADSENSE_ILLEGAL_MODE_FOR_THIS_TRACK           0x64
 #define SCSI_ADSENSE_COPY_PROTECTION_FAILURE               0x6f
 #define SCSI_ADSENSE_POWER_CALIBRATION_ERROR               0x73
 #define SCSI_ADSENSE_VENDOR_UNIQUE                         0x80
 #define SCSI_ADSENSE_MUSIC_AREA                            0xA0
 #define SCSI_ADSENSE_DATA_AREA                             0xA1
 #define SCSI_ADSENSE_VOLUME_OVERFLOW                       0xA7

 #define SCSI_ADWRITE_PROTECT                        SCSI_ADSENSE_WRITE_PROTECT
 #define SCSI_FAILURE_PREDICTION_THRESHOLD_EXCEEDED  SCSI_ADSENSE_FAILURE_PREDICTION_THRESHOLD_EXCEEDED

 #define SCSI_SENSEQ_CAUSE_NOT_REPORTABLE                   0x00
 #define SCSI_SENSEQ_BECOMING_READY                         0x01
 #define SCSI_SENSEQ_INIT_COMMAND_REQUIRED                  0x02
 #define SCSI_SENSEQ_MANUAL_INTERVENTION_REQUIRED           0x03
 #define SCSI_SENSEQ_FORMAT_IN_PROGRESS                     0x04
 #define SCSI_SENSEQ_REBUILD_IN_PROGRESS                    0x05
 #define SCSI_SENSEQ_RECALCULATION_IN_PROGRESS              0x06
 #define SCSI_SENSEQ_OPERATION_IN_PROGRESS                  0x07
 #define SCSI_SENSEQ_LONG_WRITE_IN_PROGRESS                 0x08
 #define SCSI_SENSEQ_LOSS_OF_STREAMING                      0x09
 #define SCSI_SENSEQ_PADDING_BLOCKS_ADDED                   0x0A

 #define SCSI_SENSEQ_COMM_FAILURE                 0x00
 #define SCSI_SENSEQ_COMM_TIMEOUT                 0x01
 #define SCSI_SENSEQ_COMM_PARITY_ERROR            0x02
 #define SCSI_SESNEQ_COMM_CRC_ERROR               0x03
 #define SCSI_SENSEQ_UNREACHABLE_TARGET           0x04

 #define SCSI_SENSEQ_FILEMARK_DETECTED 0x01
 #define SCSI_SENSEQ_END_OF_MEDIA_DETECTED 0x02
 #define SCSI_SENSEQ_SETMARK_DETECTED 0x03
 #define SCSI_SENSEQ_BEGINNING_OF_MEDIA_DETECTED 0x04

 #define SCSI_SENSEQ_ILLEGAL_ELEMENT_ADDR 0x01

 #define SCSI_SENSEQ_DESTINATION_FULL 0x0d
 #define SCSI_SENSEQ_SOURCE_EMPTY     0x0e

 #define SCSI_SENSEQ_INCOMPATIBLE_MEDIA_INSTALLED 0x00
 #define SCSI_SENSEQ_UNKNOWN_FORMAT 0x01
 #define SCSI_SENSEQ_INCOMPATIBLE_FORMAT 0x02
 #define SCSI_SENSEQ_CLEANING_CARTRIDGE_INSTALLED 0x03

 #define SCSI_SENSEQ_TARGET_OPERATING_CONDITIONS_CHANGED 0x00
 #define SCSI_SENSEQ_MICROCODE_CHANGED                   0x01
 #define SCSI_SENSEQ_OPERATING_DEFINITION_CHANGED        0x02
 #define SCSI_SENSEQ_INQUIRY_DATA_CHANGED                0x03
 #define SCSI_SENSEQ_COMPONENT_DEVICE_ATTACHED           0x04
 #define SCSI_SENSEQ_DEVICE_IDENTIFIER_CHANGED           0x05
 #define SCSI_SENSEQ_REDUNDANCY_GROUP_MODIFIED           0x06
 #define SCSI_SENSEQ_REDUNDANCY_GROUP_DELETED            0x07
 #define SCSI_SENSEQ_SPARE_MODIFIED                      0x08
 #define SCSI_SENSEQ_SPARE_DELETED                       0x09
 #define SCSI_SENSEQ_VOLUME_SET_MODIFIED                 0x0A
 #define SCSI_SENSEQ_VOLUME_SET_DELETED                  0x0B
 #define SCSI_SENSEQ_VOLUME_SET_DEASSIGNED               0x0C
 #define SCSI_SENSEQ_VOLUME_SET_REASSIGNED               0x0D
 #define SCSI_SENSEQ_REPORTED_LUNS_DATA_CHANGED          0x0E
 #define SCSI_SENSEQ_ECHO_BUFFER_OVERWRITTEN             0x0F
 #define SCSI_SENSEQ_MEDIUM_LOADABLE                     0x10
 #define SCSI_SENSEQ_MEDIUM_AUXILIARY_MEMORY_ACCESSIBLE  0x11

 #define SCSI_SENSEQ_STATE_CHANGE_INPUT     0x00
 #define SCSI_SENSEQ_MEDIUM_REMOVAL         0x01
 #define SCSI_SENSEQ_WRITE_PROTECT_ENABLE   0x02
 #define SCSI_SENSEQ_WRITE_PROTECT_DISABLE  0x03

 #define SCSI_SENSEQ_AUTHENTICATION_FAILURE                          0x00
 #define SCSI_SENSEQ_KEY_NOT_PRESENT                                 0x01
 #define SCSI_SENSEQ_KEY_NOT_ESTABLISHED                             0x02
 #define SCSI_SENSEQ_READ_OF_SCRAMBLED_SECTOR_WITHOUT_AUTHENTICATION 0x03
 #define SCSI_SENSEQ_MEDIA_CODE_MISMATCHED_TO_LOGICAL_UNIT           0x04
 #define SCSI_SENSEQ_LOGICAL_UNIT_RESET_COUNT_ERROR                  0x05

 #define SCSI_SENSEQ_POWER_CALIBRATION_AREA_ALMOST_FULL 0x01
 #define SCSI_SENSEQ_POWER_CALIBRATION_AREA_FULL        0x02
 #define SCSI_SENSEQ_POWER_CALIBRATION_AREA_ERROR       0x03
 #define SCSI_SENSEQ_PMA_RMA_UPDATE_FAILURE             0x04
 #define SCSI_SENSEQ_PMA_RMA_IS_FULL                    0x05
 #define SCSI_SENSEQ_PMA_RMA_ALMOST_FULL                0x06

 #define FILE_DEVICE_SCSI 0x0000001b

 #define IOCTL_SCSI_EXECUTE_IN ((FILE_DEVICE_SCSI << 16) + 0x0011)
 #define IOCTL_SCSI_EXECUTE_OUT ((FILE_DEVICE_SCSI << 16) + 0x0012)
 #define IOCTL_SCSI_EXECUTE_NONE ((FILE_DEVICE_SCSI << 16) + 0x0013)

 /* SMART support in ATAPI */
 #define IOCTL_SCSI_MINIPORT_SMART_VERSION               ((FILE_DEVICE_SCSI << 16) + 0x0500)
 #define IOCTL_SCSI_MINIPORT_IDENTIFY                    ((FILE_DEVICE_SCSI << 16) + 0x0501)
 #define IOCTL_SCSI_MINIPORT_READ_SMART_ATTRIBS          ((FILE_DEVICE_SCSI << 16) + 0x0502)
 #define IOCTL_SCSI_MINIPORT_READ_SMART_THRESHOLDS       ((FILE_DEVICE_SCSI << 16) + 0x0503)
 #define IOCTL_SCSI_MINIPORT_ENABLE_SMART                ((FILE_DEVICE_SCSI << 16) + 0x0504)
 #define IOCTL_SCSI_MINIPORT_DISABLE_SMART               ((FILE_DEVICE_SCSI << 16) + 0x0505)
 #define IOCTL_SCSI_MINIPORT_RETURN_STATUS               ((FILE_DEVICE_SCSI << 16) + 0x0506)
 #define IOCTL_SCSI_MINIPORT_ENABLE_DISABLE_AUTOSAVE     ((FILE_DEVICE_SCSI << 16) + 0x0507)
 #define IOCTL_SCSI_MINIPORT_SAVE_ATTRIBUTE_VALUES       ((FILE_DEVICE_SCSI << 16) + 0x0508)
 #define IOCTL_SCSI_MINIPORT_EXECUTE_OFFLINE_DIAGS       ((FILE_DEVICE_SCSI << 16) + 0x0509)
 #define IOCTL_SCSI_MINIPORT_ENABLE_DISABLE_AUTO_OFFLINE ((FILE_DEVICE_SCSI << 16) + 0x050a)
 #define IOCTL_SCSI_MINIPORT_READ_SMART_LOG              ((FILE_DEVICE_SCSI << 16) + 0x050b)
 #define IOCTL_SCSI_MINIPORT_WRITE_SMART_LOG             ((FILE_DEVICE_SCSI << 16) + 0x050c)

 /* CLUSTER support */
 #define IOCTL_SCSI_MINIPORT_NOT_QUORUM_CAPABLE ((FILE_DEVICE_SCSI << 16) + 0x0520)
 #define IOCTL_SCSI_MINIPORT_NOT_CLUSTER_CAPABLE ((FILE_DEVICE_SCSI << 16) + 0x0521)

 #define MODE_FD_SINGLE_SIDE               0x01
 #define MODE_FD_DOUBLE_SIDE               0x02
 #define MODE_FD_MAXIMUM_TYPE              0x1E
 #define MODE_DSP_FUA_SUPPORTED            0x10
 #define MODE_DSP_WRITE_PROTECT            0x80

 #define CDDA_CHANNEL_MUTED      0x0
 #define CDDA_CHANNEL_ZERO       0x1
 #define CDDA_CHANNEL_ONE        0x2
 #define CDDA_CHANNEL_TWO        0x4
 #define CDDA_CHANNEL_THREE      0x8

 #define CDVD_LMT_CADDY              0
 #define CDVD_LMT_TRAY               1
 #define CDVD_LMT_POPUP              2
 #define CDVD_LMT_RESERVED1          3
 #define CDVD_LMT_CHANGER_INDIVIDUAL 4
 #define CDVD_LMT_CHANGER_CARTRIDGE  5
 #define CDVD_LMT_RESERVED2          6
 #define CDVD_LMT_RESERVED3          7

 #define LOADING_MECHANISM_CADDY                 0x00
 #define LOADING_MECHANISM_TRAY                  0x01
 #define LOADING_MECHANISM_POPUP                 0x02
 #define LOADING_MECHANISM_INDIVIDUAL_CHANGER    0x04
 #define LOADING_MECHANISM_CARTRIDGE_CHANGER     0x05

 #define MODE_BLOCK_DESC_LENGTH        8
 #define MODE_HEADER_LENGTH            4
 #define MODE_HEADER_LENGTH10          8

 /* CDROM audio control */
 #define CDB_AUDIO_PAUSE                   0x00
 #define CDB_AUDIO_RESUME                  0x01
 #define CDB_DEVICE_START                  0x11
 #define CDB_DEVICE_STOP                   0x10
 #define CDB_EJECT_MEDIA                   0x10
 #define CDB_LOAD_MEDIA                    0x01
 #define CDB_SUBCHANNEL_HEADER             0x00
 #define CDB_SUBCHANNEL_BLOCK              0x01

 #define CDROM_AUDIO_CONTROL_PAGE          0x0E
 #define MODE_SELECT_IMMEDIATE             0x04
 #define MODE_SELECT_PFBIT                 0x10

 #define CDB_USE_MSF                       0x01

 /* Multisession CDROMs */
 #define GET_LAST_SESSION 0x01
 #define GET_SESSION_DATA 0x02

 typedef union _CDB {
   struct _CDB6GENERIC {
     UCHAR OperationCode;
     UCHAR Immediate:1;
     UCHAR CommandUniqueBits:4;
     UCHAR LogicalUnitNumber:3;
     UCHAR CommandUniqueBytes[3];
     UCHAR Link:1;
     UCHAR Flag:1;
     UCHAR Reserved:4;
     UCHAR VendorUnique:2;
   } CDB6GENERIC;
   struct _CDB6READWRITE {
     UCHAR OperationCode;
     UCHAR LogicalBlockMsb1:5;
     UCHAR LogicalUnitNumber:3;
     UCHAR LogicalBlockMsb0;
     UCHAR LogicalBlockLsb;
     UCHAR TransferBlocks;
     UCHAR Control;
   } CDB6READWRITE;
   struct _CDB6INQUIRY {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR LogicalUnitNumber:3;
     UCHAR PageCode;
     UCHAR IReserved;
     UCHAR AllocationLength;
     UCHAR Control;
   } CDB6INQUIRY;
   struct _CDB6INQUIRY3 {
     UCHAR OperationCode;
     UCHAR EnableVitalProductData:1;
     UCHAR CommandSupportData:1;
     UCHAR Reserved1:6;
     UCHAR PageCode;
     UCHAR Reserved2;
     UCHAR AllocationLength;
     UCHAR Control;
   } CDB6INQUIRY3;
   struct _CDB6VERIFY {
     UCHAR OperationCode;
     UCHAR Fixed:1;
     UCHAR ByteCompare:1;
     UCHAR Immediate:1;
     UCHAR Reserved:2;
     UCHAR LogicalUnitNumber:3;
     UCHAR VerificationLength[3];
     UCHAR Control;
   } CDB6VERIFY;
   struct _RECEIVE_DIAGNOSTIC {
     UCHAR OperationCode;
     UCHAR PageCodeValid:1;
     UCHAR Reserved:7;
     UCHAR PageCode;
     UCHAR AllocationLength[2];
     UCHAR Control;
   } RECEIVE_DIAGNOSTIC;
   struct _SEND_DIAGNOSTIC {
     UCHAR OperationCode;
     UCHAR UnitOffline:1;
     UCHAR DeviceOffline:1;
     UCHAR SelfTest:1;
     UCHAR Reserved1:1;
     UCHAR PageFormat:1;
     UCHAR SelfTestCode:3;
     UCHAR Reserved2;
     UCHAR ParameterListLength[2];
     UCHAR Control;
   } SEND_DIAGNOSTIC;
   struct _CDB6FORMAT {
     UCHAR OperationCode;
     UCHAR FormatControl:5;
     UCHAR LogicalUnitNumber:3;
     UCHAR FReserved1;
     UCHAR InterleaveMsb;
     UCHAR InterleaveLsb;
     UCHAR FReserved2;
   } CDB6FORMAT;
   struct _CDB10 {
     UCHAR OperationCode;
     UCHAR RelativeAddress:1;
     UCHAR Reserved1:2;
     UCHAR ForceUnitAccess:1;
     UCHAR DisablePageOut:1;
     UCHAR LogicalUnitNumber:3;
     UCHAR LogicalBlockByte0;
     UCHAR LogicalBlockByte1;
     UCHAR LogicalBlockByte2;
     UCHAR LogicalBlockByte3;
     UCHAR Reserved2;
     UCHAR TransferBlocksMsb;
     UCHAR TransferBlocksLsb;
     UCHAR Control;
   } CDB10;
   struct _CDB12 {
     UCHAR OperationCode;
     UCHAR RelativeAddress:1;
     UCHAR Reserved1:2;
     UCHAR ForceUnitAccess:1;
     UCHAR DisablePageOut:1;
     UCHAR LogicalUnitNumber:3;
     UCHAR LogicalBlock[4];
     UCHAR TransferLength[4];
     UCHAR Reserved2;
     UCHAR Control;
   } CDB12;
   struct _CDB16 {
      UCHAR OperationCode;
      UCHAR Reserved1:3;
      UCHAR ForceUnitAccess:1;
      UCHAR DisablePageOut:1;
      UCHAR Protection:3;
      UCHAR LogicalBlock[8];
      UCHAR TransferLength[4];
      UCHAR Reserved2;
      UCHAR Control;
   } CDB16;
   struct _READ_BUFFER_10 {
     UCHAR OperationCode;
     UCHAR Mode:5;
     UCHAR ModeSpecific:3;
     UCHAR BufferId;
     UCHAR BufferOffset[3];
     UCHAR AllocationLength[3];
     UCHAR Control;
   } READ_BUFFER_10;
   struct _READ_BUFFER_16 {
     UCHAR OperationCode;
     UCHAR Mode:5;
     UCHAR ModeSpecific:3;
     UCHAR BufferOffset[8];
     UCHAR AllocationLength[4];
     UCHAR BufferId;
     UCHAR Control;
   } READ_BUFFER_16;
   struct _SECURITY_PROTOCOL_IN {
     UCHAR OperationCode;
     UCHAR SecurityProtocol;
     UCHAR SecurityProtocolSpecific[2];
     UCHAR Reserved1:7;
     UCHAR INC_512:1;
     UCHAR Reserved2;
     UCHAR AllocationLength[4];
     UCHAR Reserved3;
     UCHAR Control;
   } SECURITY_PROTOCOL_IN;
   struct _SECURITY_PROTOCOL_OUT {
     UCHAR OperationCode;
     UCHAR SecurityProtocol;
     UCHAR SecurityProtocolSpecific[2];
     UCHAR Reserved1:7;
     UCHAR INC_512:1;
     UCHAR Reserved2;
     UCHAR AllocationLength[4];
     UCHAR Reserved3;
     UCHAR Control;
   } SECURITY_PROTOCOL_OUT;
   struct _UNMAP {
     UCHAR OperationCode;
     UCHAR Anchor:1;
     UCHAR Reserved1:7;
     UCHAR Reserved2[4];
     UCHAR GroupNumber:5;
     UCHAR Reserved3:3;
     UCHAR AllocationLength[2];
     UCHAR Control;
   } UNMAP;
   struct _SANITIZE {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR AUSE:1;
     UCHAR Reserved1:1;
     UCHAR Immediate:1;
     UCHAR Reserved2[5];
     UCHAR ParameterListLength[2];
     UCHAR Control;
   } SANITIZE;
   struct _PAUSE_RESUME {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR LogicalUnitNumber:3;
     UCHAR Reserved2[6];
     UCHAR Action;
     UCHAR Control;
   } PAUSE_RESUME;
   struct _READ_TOC {
     UCHAR OperationCode;
     UCHAR Reserved0:1;
     UCHAR Msf:1;
     UCHAR Reserved1:3;
     UCHAR LogicalUnitNumber:3;
     UCHAR Format2:4;
     UCHAR Reserved2:4;
     UCHAR Reserved3[3];
     UCHAR StartingTrack;
     UCHAR AllocationLength[2];
     UCHAR Control:6;
     UCHAR Format:2;
   } READ_TOC;
   struct _READ_DISK_INFORMATION {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR Lun:3;
     UCHAR Reserved2[5];
     UCHAR AllocationLength[2];
     UCHAR Control;
   } READ_DISK_INFORMATION;
   struct _READ_TRACK_INFORMATION {
     UCHAR OperationCode;
     UCHAR Track:2;
     UCHAR Reserved4:3;
     UCHAR Lun:3;
     UCHAR BlockAddress[4];
     UCHAR Reserved3;
     UCHAR AllocationLength[2];
     UCHAR Control;
   } READ_TRACK_INFORMATION;
   struct _RESERVE_TRACK_RZONE {
     UCHAR OperationCode;
     UCHAR Reserved1[4];
     UCHAR ReservationSize[4];
     UCHAR Control;
   } RESERVE_TRACK_RZONE;
   struct _SEND_OPC_INFORMATION {
     UCHAR OperationCode;
     UCHAR DoOpc:1;
     UCHAR Reserved1:7;
     UCHAR Exclude0:1;
     UCHAR Exclude1:1;
     UCHAR Reserved2:6;
     UCHAR Reserved3[4];
     UCHAR ParameterListLength[2];
     UCHAR Reserved4;
   } SEND_OPC_INFORMATION;
   struct _REPAIR_TRACK {
     UCHAR OperationCode;
     UCHAR Immediate:1;
     UCHAR Reserved1:7;
     UCHAR Reserved2[2];
     UCHAR TrackNumber[2];
     UCHAR Reserved3[3];
     UCHAR Control;
   } REPAIR_TRACK;
   struct _CLOSE_TRACK {
     UCHAR OperationCode;
     UCHAR Immediate:1;
     UCHAR Reserved1:7;
     UCHAR Track:1;
     UCHAR Session:1;
     UCHAR Reserved2:6;
     UCHAR Reserved3;
     UCHAR TrackNumber[2];
     UCHAR Reserved4[3];
     UCHAR Control;
   } CLOSE_TRACK;
   struct _READ_BUFFER_CAPACITY {
     UCHAR OperationCode;
     UCHAR BlockInfo:1;
     UCHAR Reserved1:7;
     UCHAR Reserved2[5];
     UCHAR AllocationLength[2];
     UCHAR Control;
   } READ_BUFFER_CAPACITY;
   struct _SEND_CUE_SHEET {
     UCHAR OperationCode;
     UCHAR Reserved[5];
     UCHAR CueSheetSize[3];
     UCHAR Control;
   } SEND_CUE_SHEET;
   struct _READ_HEADER {
     UCHAR OperationCode;
     UCHAR Reserved1:1;
     UCHAR Msf:1;
     UCHAR Reserved2:3;
     UCHAR Lun:3;
     UCHAR LogicalBlockAddress[4];
     UCHAR Reserved3;
     UCHAR AllocationLength[2];
     UCHAR Control;
   } READ_HEADER;
   struct _PLAY_AUDIO {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR LogicalUnitNumber:3;
     UCHAR StartingBlockAddress[4];
     UCHAR Reserved2;
     UCHAR PlayLength[2];
     UCHAR Control;
   } PLAY_AUDIO;
   struct _PLAY_AUDIO_MSF {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR LogicalUnitNumber:3;
     UCHAR Reserved2;
     UCHAR StartingM;
     UCHAR StartingS;
     UCHAR StartingF;
     UCHAR EndingM;
     UCHAR EndingS;
     UCHAR EndingF;
     UCHAR Control;
   } PLAY_AUDIO_MSF;
   struct _BLANK_MEDIA {
     UCHAR OperationCode;
     UCHAR BlankType:3;
     UCHAR Reserved1:1;
     UCHAR Immediate:1;
     UCHAR Reserved2:3;
     UCHAR AddressOrTrack[4];
     UCHAR Reserved3[5];
     UCHAR Control;
   } BLANK_MEDIA;
   struct _PLAY_CD {
     UCHAR OperationCode;
     UCHAR Reserved1:1;
     UCHAR CMSF:1;
     UCHAR ExpectedSectorType:3;
     UCHAR Lun:3;
     _ANONYMOUS_UNION union {
       struct {
         UCHAR StartingBlockAddress[4];
         UCHAR PlayLength[4];
       } LBA;
       struct {
         UCHAR Reserved1;
         UCHAR StartingM;
         UCHAR StartingS;
         UCHAR StartingF;
         UCHAR EndingM;
         UCHAR EndingS;
         UCHAR EndingF;
         UCHAR Reserved2;
       } MSF;
     };
     UCHAR Audio:1;
     UCHAR Composite:1;
     UCHAR Port1:1;
     UCHAR Port2:1;
     UCHAR Reserved2:3;
     UCHAR Speed:1;
     UCHAR Control;
   } PLAY_CD;
   struct _SCAN_CD {
     UCHAR OperationCode;
     UCHAR RelativeAddress:1;
     UCHAR Reserved1:3;
     UCHAR Direct:1;
     UCHAR Lun:3;
     UCHAR StartingAddress[4];
     UCHAR Reserved2[3];
     UCHAR Reserved3:6;
     UCHAR Type:2;
     UCHAR Reserved4;
     UCHAR Control;
   } SCAN_CD;
   struct _STOP_PLAY_SCAN {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR Lun:3;
     UCHAR Reserved2[7];
     UCHAR Control;
   } STOP_PLAY_SCAN;
   struct _SUBCHANNEL {
     UCHAR OperationCode;
     UCHAR Reserved0:1;
     UCHAR Msf:1;
     UCHAR Reserved1:3;
     UCHAR LogicalUnitNumber:3;
     UCHAR Reserved2:6;
     UCHAR SubQ:1;
     UCHAR Reserved3:1;
     UCHAR Format;
     UCHAR Reserved4[2];
     UCHAR TrackNumber;
     UCHAR AllocationLength[2];
     UCHAR Control;
   } SUBCHANNEL;
   struct _READ_CD {
     UCHAR OperationCode;
     UCHAR RelativeAddress:1;
     UCHAR Reserved0:1;
     UCHAR ExpectedSectorType:3;
     UCHAR Lun:3;
     UCHAR StartingLBA[4];
     UCHAR TransferBlocks[3];
     UCHAR Reserved2:1;
     UCHAR ErrorFlags:2;
     UCHAR IncludeEDC:1;
     UCHAR IncludeUserData:1;
     UCHAR HeaderCode:2;
     UCHAR IncludeSyncData:1;
     UCHAR SubChannelSelection:3;
     UCHAR Reserved3:5;
     UCHAR Control;
   } READ_CD;
   struct _READ_CD_MSF {
     UCHAR OperationCode;
     UCHAR RelativeAddress:1;
     UCHAR Reserved1:1;
     UCHAR ExpectedSectorType:3;
     UCHAR Lun:3;
     UCHAR Reserved2;
     UCHAR StartingM;
     UCHAR StartingS;
     UCHAR StartingF;
     UCHAR EndingM;
     UCHAR EndingS;
     UCHAR EndingF;
     UCHAR Reserved3;
     UCHAR Reserved4:1;
     UCHAR ErrorFlags:2;
     UCHAR IncludeEDC:1;
     UCHAR IncludeUserData:1;
     UCHAR HeaderCode:2;
     UCHAR IncludeSyncData:1;
     UCHAR SubChannelSelection:3;
     UCHAR Reserved5:5;
     UCHAR Control;
   } READ_CD_MSF;
   struct _PLXTR_READ_CDDA {
     UCHAR OperationCode;
     UCHAR Reserved0:5;
     UCHAR LogicalUnitNumber:3;
     UCHAR LogicalBlockByte0;
     UCHAR LogicalBlockByte1;
     UCHAR LogicalBlockByte2;
     UCHAR LogicalBlockByte3;
     UCHAR TransferBlockByte0;
     UCHAR TransferBlockByte1;
     UCHAR TransferBlockByte2;
     UCHAR TransferBlockByte3;
     UCHAR SubCode;
     UCHAR Control;
   } PLXTR_READ_CDDA;
   struct _NEC_READ_CDDA {
     UCHAR OperationCode;
     UCHAR Reserved0;
     UCHAR LogicalBlockByte0;
     UCHAR LogicalBlockByte1;
     UCHAR LogicalBlockByte2;
     UCHAR LogicalBlockByte3;
     UCHAR Reserved1;
     UCHAR TransferBlockByte0;
     UCHAR TransferBlockByte1;
     UCHAR Control;
   } NEC_READ_CDDA;
 #if NTDDI_VERSION >= NTDDI_WIN8
   struct _MODE_SENSE {
     UCHAR OperationCode;
     UCHAR Reserved1:3;
     UCHAR Dbd:1;
     UCHAR Reserved2:4;
     UCHAR PageCode:6;
     UCHAR Pc:2;
     UCHAR SubPageCode;
     UCHAR AllocationLength;
     UCHAR Control;
   } MODE_SENSE;
   struct _MODE_SENSE10 {
     UCHAR OperationCode;
     UCHAR Reserved1:3;
     UCHAR Dbd:1;
     UCHAR LongLBAAccepted:1;
     UCHAR Reserved2:3;
     UCHAR PageCode:6;
     UCHAR Pc:2;
     UCHAR SubPageCode;
     UCHAR Reserved3[3];
     UCHAR AllocationLength[2];
     UCHAR Control;
   } MODE_SENSE10;
 #else
     struct _MODE_SENSE {
     UCHAR OperationCode;
     UCHAR Reserved1:3;
     UCHAR Dbd:1;
     UCHAR Reserved2:1;
     UCHAR LogicalUnitNumber:3;
     UCHAR PageCode:6;
     UCHAR Pc:2;
     UCHAR Reserved3;
     UCHAR AllocationLength;
     UCHAR Control;
   } MODE_SENSE;
   struct _MODE_SENSE10 {
     UCHAR OperationCode;
     UCHAR Reserved1:3;
     UCHAR Dbd:1;
     UCHAR Reserved2:1;
     UCHAR LogicalUnitNumber:3;
     UCHAR PageCode:6;
     UCHAR Pc:2;
     UCHAR Reserved3[4];
     UCHAR AllocationLength[2];
     UCHAR Control;
   } MODE_SENSE10;
 #endif /* NTDDI_VERSION >= NTDDI_WIN8 */
   struct _MODE_SELECT {
     UCHAR OperationCode;
     UCHAR SPBit:1;
     UCHAR Reserved1:3;
     UCHAR PFBit:1;
     UCHAR LogicalUnitNumber:3;
     UCHAR Reserved2[2];
     UCHAR ParameterListLength;
     UCHAR Control;
   } MODE_SELECT;
   struct _MODE_SELECT10 {
     UCHAR OperationCode;
     UCHAR SPBit:1;
     UCHAR Reserved1:3;
     UCHAR PFBit:1;
     UCHAR LogicalUnitNumber:3;
     UCHAR Reserved2[5];
     UCHAR ParameterListLength[2];
     UCHAR Control;
   } MODE_SELECT10;
   struct _LOCATE {
     UCHAR OperationCode;
     UCHAR Immediate:1;
     UCHAR CPBit:1;
     UCHAR BTBit:1;
     UCHAR Reserved1:2;
     UCHAR LogicalUnitNumber:3;
     UCHAR Reserved3;
     UCHAR LogicalBlockAddress[4];
     UCHAR Reserved4;
     UCHAR Partition;
     UCHAR Control;
   } LOCATE;
   struct _LOGSENSE {
     UCHAR OperationCode;
     UCHAR SPBit:1;
     UCHAR PPCBit:1;
     UCHAR Reserved1:3;
     UCHAR LogicalUnitNumber:3;
     UCHAR PageCode:6;
     UCHAR PCBit:2;
     _ANONYMOUS_UNION union {
       UCHAR SubPageCode;
       UCHAR Reserved2;
     };
     UCHAR Reserved3;
     UCHAR ParameterPointer[2];
     UCHAR AllocationLength[2];
     UCHAR Control;
   } LOGSENSE;
   struct _LOGSELECT {
     UCHAR OperationCode;
     UCHAR SPBit:1;
     UCHAR PCRBit:1;
     UCHAR Reserved1:3;
     UCHAR LogicalUnitNumber:3;
     UCHAR Reserved:6;
     UCHAR PCBit:2;
     UCHAR Reserved2[4];
     UCHAR ParameterListLength[2];
     UCHAR Control;
   } LOGSELECT;
   struct _PRINT {
     UCHAR OperationCode;
     UCHAR Reserved:5;
     UCHAR LogicalUnitNumber:3;
     UCHAR TransferLength[3];
     UCHAR Control;
   } PRINT;
   struct _SEEK {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR LogicalUnitNumber:3;
     UCHAR LogicalBlockAddress[4];
     UCHAR Reserved2[3];
     UCHAR Control;
   } SEEK;
   struct _ERASE {
     UCHAR OperationCode;
     UCHAR Long:1;
     UCHAR Immediate:1;
     UCHAR Reserved1:3;
     UCHAR LogicalUnitNumber:3;
     UCHAR Reserved2[3];
     UCHAR Control;
   } ERASE;
   struct _START_STOP {
     UCHAR OperationCode;
     UCHAR Immediate:1;
     UCHAR Reserved1:4;
     UCHAR LogicalUnitNumber:3;
     UCHAR Reserved2[2];
     UCHAR Start:1;
     UCHAR LoadEject:1;
     UCHAR Reserved3:6;
     UCHAR Control;
   } START_STOP;
   struct _MEDIA_REMOVAL {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR LogicalUnitNumber:3;
     UCHAR Reserved2[2];
     UCHAR Prevent:1;
     UCHAR Persistant:1;
     UCHAR Reserved3:6;
     UCHAR Control;
   } MEDIA_REMOVAL;
   struct _SEEK_BLOCK {
     UCHAR OperationCode;
     UCHAR Immediate:1;
     UCHAR Reserved1:7;
     UCHAR BlockAddress[3];
     UCHAR Link:1;
     UCHAR Flag:1;
     UCHAR Reserved2:4;
     UCHAR VendorUnique:2;
   } SEEK_BLOCK;
   struct _REQUEST_BLOCK_ADDRESS {
     UCHAR OperationCode;
     UCHAR Reserved1[3];
     UCHAR AllocationLength;
     UCHAR Link:1;
     UCHAR Flag:1;
     UCHAR Reserved2:4;
     UCHAR VendorUnique:2;
   } REQUEST_BLOCK_ADDRESS;
   struct _PARTITION {
     UCHAR OperationCode;
     UCHAR Immediate:1;
     UCHAR Sel:1;
     UCHAR PartitionSelect:6;
     UCHAR Reserved1[3];
     UCHAR Control;
   } PARTITION;
   struct _WRITE_TAPE_MARKS {
     UCHAR OperationCode;
     UCHAR Immediate:1;
     UCHAR WriteSetMarks:1;
     UCHAR Reserved:3;
     UCHAR LogicalUnitNumber:3;
     UCHAR TransferLength[3];
     UCHAR Control;
   } WRITE_TAPE_MARKS;
   struct _SPACE_TAPE_MARKS {
     UCHAR OperationCode;
     UCHAR Code:3;
     UCHAR Reserved:2;
     UCHAR LogicalUnitNumber:3;
     UCHAR NumMarksMSB;
     UCHAR NumMarks;
     UCHAR NumMarksLSB;
   union {
     UCHAR value;
     struct {
       UCHAR Link:1;
       UCHAR Flag:1;
       UCHAR Reserved:4;
       UCHAR VendorUnique:2;
     } Fields;
   } Byte6;
   } SPACE_TAPE_MARKS;
   struct _READ_POSITION {
     UCHAR Operation;
     UCHAR BlockType:1;
     UCHAR Reserved1:4;
     UCHAR Lun:3;
     UCHAR Reserved2[7];
     UCHAR Control;
   } READ_POSITION;
   struct _CDB6READWRITETAPE {
     UCHAR OperationCode;
     UCHAR VendorSpecific:5;
     UCHAR Reserved:3;
     UCHAR TransferLenMSB;
     UCHAR TransferLen;
     UCHAR TransferLenLSB;
     UCHAR Link:1;
     UCHAR Flag:1;
     UCHAR Reserved1:4;
     UCHAR VendorUnique:2;
   } CDB6READWRITETAPE;
   struct _INIT_ELEMENT_STATUS {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR LogicalUnitNubmer:3;
     UCHAR Reserved2[3];
     UCHAR Reserved3:7;
     UCHAR NoBarCode:1;
   } INIT_ELEMENT_STATUS;
   struct _INITIALIZE_ELEMENT_RANGE {
     UCHAR OperationCode;
     UCHAR Range:1;
     UCHAR Reserved1:4;
     UCHAR LogicalUnitNubmer:3;
     UCHAR FirstElementAddress[2];
     UCHAR Reserved2[2];
     UCHAR NumberOfElements[2];
     UCHAR Reserved3;
     UCHAR Reserved4:7;
     UCHAR NoBarCode:1;
   } INITIALIZE_ELEMENT_RANGE;
   struct _POSITION_TO_ELEMENT {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR LogicalUnitNumber:3;
     UCHAR TransportElementAddress[2];
     UCHAR DestinationElementAddress[2];
     UCHAR Reserved2[2];
     UCHAR Flip:1;
     UCHAR Reserved3:7;
     UCHAR Control;
   } POSITION_TO_ELEMENT;
   struct _MOVE_MEDIUM {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR LogicalUnitNumber:3;
     UCHAR TransportElementAddress[2];
     UCHAR SourceElementAddress[2];
     UCHAR DestinationElementAddress[2];
     UCHAR Reserved2[2];
     UCHAR Flip:1;
     UCHAR Reserved3:7;
     UCHAR Control;
   } MOVE_MEDIUM;
   struct _EXCHANGE_MEDIUM {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR LogicalUnitNumber:3;
     UCHAR TransportElementAddress[2];
     UCHAR SourceElementAddress[2];
     UCHAR Destination1ElementAddress[2];
     UCHAR Destination2ElementAddress[2];
     UCHAR Flip1:1;
     UCHAR Flip2:1;
     UCHAR Reserved3:6;
     UCHAR Control;
   } EXCHANGE_MEDIUM;
   struct _READ_ELEMENT_STATUS {
     UCHAR OperationCode;
     UCHAR ElementType:4;
     UCHAR VolTag:1;
     UCHAR LogicalUnitNumber:3;
     UCHAR StartingElementAddress[2];
     UCHAR NumberOfElements[2];
     UCHAR Reserved1;
     UCHAR AllocationLength[3];
     UCHAR Reserved2;
     UCHAR Control;
   } READ_ELEMENT_STATUS;
   struct _SEND_VOLUME_TAG {
     UCHAR OperationCode;
     UCHAR ElementType:4;
     UCHAR Reserved1:1;
     UCHAR LogicalUnitNumber:3;
     UCHAR StartingElementAddress[2];
     UCHAR Reserved2;
     UCHAR ActionCode:5;
     UCHAR Reserved3:3;
     UCHAR Reserved4[2];
     UCHAR ParameterListLength[2];
     UCHAR Reserved5;
     UCHAR Control;
   } SEND_VOLUME_TAG;
   struct _REQUEST_VOLUME_ELEMENT_ADDRESS {
     UCHAR OperationCode;
     UCHAR ElementType:4;
     UCHAR VolTag:1;
     UCHAR LogicalUnitNumber:3;
     UCHAR StartingElementAddress[2];
     UCHAR NumberElements[2];
     UCHAR Reserved1;
     UCHAR AllocationLength[3];
     UCHAR Reserved2;
     UCHAR Control;
   } REQUEST_VOLUME_ELEMENT_ADDRESS;
   struct _LOAD_UNLOAD {
     UCHAR OperationCode;
     UCHAR Immediate:1;
     UCHAR Reserved1:4;
     UCHAR Lun:3;
     UCHAR Reserved2[2];
     UCHAR Start:1;
     UCHAR LoadEject:1;
     UCHAR Reserved3:6;
     UCHAR Reserved4[3];
     UCHAR Slot;
     UCHAR Reserved5[3];
   } LOAD_UNLOAD;
   struct _MECH_STATUS {
     UCHAR OperationCode;
     UCHAR Reserved:5;
     UCHAR Lun:3;
     UCHAR Reserved1[6];
     UCHAR AllocationLength[2];
     UCHAR Reserved2[1];
     UCHAR Control;
   } MECH_STATUS;
   struct _SYNCHRONIZE_CACHE10 {
     UCHAR OperationCode;
     UCHAR RelAddr:1;
     UCHAR Immediate:1;
     UCHAR Reserved:3;
     UCHAR Lun:3;
     UCHAR LogicalBlockAddress[4];
     UCHAR Reserved2;
     UCHAR BlockCount[2];
     UCHAR Control;
   } SYNCHRONIZE_CACHE10;
   struct _GET_EVENT_STATUS_NOTIFICATION {
     UCHAR OperationCode;
     UCHAR Immediate:1;
     UCHAR Reserved:4;
     UCHAR Lun:3;
     UCHAR Reserved2[2];
     UCHAR NotificationClassRequest;
     UCHAR Reserved3[2];
     UCHAR EventListLength[2];
     UCHAR Control;
   } GET_EVENT_STATUS_NOTIFICATION;
   struct _GET_PERFORMANCE {
     UCHAR OperationCode;
     UCHAR Except:2;
     UCHAR Write:1;
     UCHAR Tolerance:2;
     UCHAR Reserved0:3;
     UCHAR StartingLBA[4];
     UCHAR Reserved1[2];
     UCHAR MaximumNumberOfDescriptors[2];
     UCHAR Type;
     UCHAR Control;
   } GET_PERFORMANCE;
   struct _READ_DVD_STRUCTURE {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR Lun:3;
     UCHAR RMDBlockNumber[4];
     UCHAR LayerNumber;
     UCHAR Format;
     UCHAR AllocationLength[2];
     UCHAR Reserved3:6;
     UCHAR AGID:2;
     UCHAR Control;
   } READ_DVD_STRUCTURE;
   struct _SET_STREAMING {
     UCHAR OperationCode;
     UCHAR Reserved[8];
     UCHAR ParameterListLength[2];
     UCHAR Control;
   } SET_STREAMING;
   struct _SEND_DVD_STRUCTURE {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR Lun:3;
     UCHAR Reserved2[5];
     UCHAR Format;
     UCHAR ParameterListLength[2];
     UCHAR Reserved3;
     UCHAR Control;
   } SEND_DVD_STRUCTURE;
   struct _SEND_KEY {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR Lun:3;
     UCHAR Reserved2[6];
     UCHAR ParameterListLength[2];
     UCHAR KeyFormat:6;
     UCHAR AGID:2;
     UCHAR Control;
   } SEND_KEY;
   struct _REPORT_KEY {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR Lun:3;
     UCHAR LogicalBlockAddress[4];
     UCHAR Reserved2[2];
     UCHAR AllocationLength[2];
     UCHAR KeyFormat:6;
     UCHAR AGID:2;
     UCHAR Control;
   } REPORT_KEY;
   struct _SET_READ_AHEAD {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR Lun:3;
     UCHAR TriggerLBA[4];
     UCHAR ReadAheadLBA[4];
     UCHAR Reserved2;
     UCHAR Control;
   } SET_READ_AHEAD;
   struct _READ_FORMATTED_CAPACITIES {
     UCHAR OperationCode;
     UCHAR Reserved1:5;
     UCHAR Lun:3;
     UCHAR Reserved2[5];
     UCHAR AllocationLength[2];
     UCHAR Control;
   } READ_FORMATTED_CAPACITIES;
   struct _REPORT_LUNS {
     UCHAR OperationCode;
     UCHAR Reserved1[5];
     UCHAR AllocationLength[4];
     UCHAR Reserved2[1];
     UCHAR Control;
   } REPORT_LUNS;
   struct _PERSISTENT_RESERVE_IN {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR Reserved2[5];
     UCHAR AllocationLength[2];
     UCHAR Control;
   } PERSISTENT_RESERVE_IN;
   struct _PERSISTENT_RESERVE_OUT {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR Type:4;
     UCHAR Scope:4;
     UCHAR Reserved2[4];
     UCHAR ParameterListLength[2];
     UCHAR Control;
   } PERSISTENT_RESERVE_OUT;
   struct _REPORT_TIMESTAMP {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR Reserved2[4];
     UCHAR AllocationLength[4];
     UCHAR Reserved3;
     UCHAR Control;
   } REPORT_TIMESTAMP;
   struct _SET_TIMESTAMP {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR Reserved2[4];
     UCHAR ParameterListLength[4];
     UCHAR Reserved3;
     UCHAR Control;
   } SET_TIMESTAMP;
   struct _GET_CONFIGURATION {
     UCHAR OperationCode;
     UCHAR RequestType:2;
     UCHAR Reserved1:6;
     UCHAR StartingFeature[2];
     UCHAR Reserved2[3];
     UCHAR AllocationLength[2];
     UCHAR Control;
   } GET_CONFIGURATION;
   struct _SET_CD_SPEED {
     UCHAR OperationCode;
     _ANONYMOUS_UNION union {
       UCHAR Reserved1;
       _ANONYMOUS_STRUCT struct {
         UCHAR RotationControl:2;
         UCHAR Reserved3:6;
       } DUMMYSTRUCTNAME;
     } DUMMYUNIONNAME;
     UCHAR ReadSpeed[2];
     UCHAR WriteSpeed[2];
     UCHAR Reserved2[5];
     UCHAR Control;
   } SET_CD_SPEED;
   struct _READ12 {
     UCHAR OperationCode;
     UCHAR RelativeAddress:1;
     UCHAR Reserved1:2;
     UCHAR ForceUnitAccess:1;
     UCHAR DisablePageOut:1;
     UCHAR LogicalUnitNumber:3;
     UCHAR LogicalBlock[4];
     UCHAR TransferLength[4];
     UCHAR Reserved2:7;
     UCHAR Streaming:1;
     UCHAR Control;
   } READ12;
   struct _WRITE12 {
     UCHAR OperationCode;
     UCHAR RelativeAddress:1;
     UCHAR Reserved1:1;
     UCHAR EBP:1;
     UCHAR ForceUnitAccess:1;
     UCHAR DisablePageOut:1;
     UCHAR LogicalUnitNumber:3;
     UCHAR LogicalBlock[4];
     UCHAR TransferLength[4];
     UCHAR Reserved2:7;
     UCHAR Streaming:1;
     UCHAR Control;
   } WRITE12;
   struct _ATA_PASSTHROUGH12 {
     UCHAR OperationCode;
     UCHAR Reserved1:1;
     UCHAR Protocol:4;
     UCHAR MultipleCount:3;
     UCHAR TLength:2;
     UCHAR ByteBlock:1;
     UCHAR TDir:1;
     UCHAR Reserved2:1;
     UCHAR CkCond:1;
     UCHAR Offline:2;
     UCHAR Features;
     UCHAR SectorCount;
     UCHAR LbaLow;
     UCHAR LbaMid;
     UCHAR LbaHigh;
     UCHAR Device;
     UCHAR Command;
     UCHAR Reserved3;
     UCHAR Control;
   } ATA_PASSTHROUGH12;
   struct _READ16 {
     UCHAR OperationCode;
     UCHAR Reserved1:3;
     UCHAR ForceUnitAccess:1;
     UCHAR DisablePageOut:1;
     UCHAR ReadProtect:3;
     UCHAR LogicalBlock[8];
     UCHAR TransferLength[4];
     UCHAR Reserved2:7;
     UCHAR Streaming:1;
     UCHAR Control;
   } READ16;
   struct _WRITE16 {
     UCHAR OperationCode;
     UCHAR Reserved1:3;
     UCHAR ForceUnitAccess:1;
     UCHAR DisablePageOut:1;
     UCHAR WriteProtect:3;
     UCHAR LogicalBlock[8];
     UCHAR TransferLength[4];
     UCHAR Reserved2:7;
     UCHAR Streaming:1;
     UCHAR Control;
   } WRITE16;
   struct _VERIFY16 {
     UCHAR OperationCode;
     UCHAR Reserved1:1;
     UCHAR ByteCheck:1;
     UCHAR BlockVerify:1;
     UCHAR Reserved2: 1;
     UCHAR DisablePageOut:1;
     UCHAR VerifyProtect:3;
     UCHAR LogicalBlock[8];
     UCHAR VerificationLength[4];
     UCHAR Reserved3:7;
     UCHAR Streaming:1;
     UCHAR Control;
   } VERIFY16;
   struct _SYNCHRONIZE_CACHE16 {
     UCHAR OperationCode;
     UCHAR Reserved1:1;
     UCHAR Immediate:1;
     UCHAR Reserved2:6;
     UCHAR LogicalBlock[8];
     UCHAR BlockCount[4];
     UCHAR Reserved3;
     UCHAR Control;
   } SYNCHRONIZE_CACHE16;
   struct _READ_CAPACITY16 {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR LogicalBlock[8];
     UCHAR BlockCount[4];
     UCHAR PMI:1;
     UCHAR Reserved2:7;
     UCHAR Control;
   } READ_CAPACITY16;
   struct _ATA_PASSTHROUGH16 {
     UCHAR OperationCode;
     UCHAR Extend:1;
     UCHAR Protocol:4;
     UCHAR MultipleCount:3;
     UCHAR TLength:2;
     UCHAR ByteBlock:1;
     UCHAR TDir:1;
     UCHAR Reserved1:1;
     UCHAR CkCond:1;
     UCHAR Offline:2;
     UCHAR Features15_8;
     UCHAR Features7_0;
     UCHAR SectorCount15_8;
     UCHAR SectorCount7_0;
     UCHAR LbaLow15_8;
     UCHAR LbaLow7_0;
     UCHAR LbaMid15_8;
     UCHAR LbaMid7_0;
     UCHAR LbaHigh15_8;
     UCHAR LbaHigh7_0;
     UCHAR Device;
     UCHAR Command;
     UCHAR Control;
   } ATA_PASSTHROUGH16;
   struct _GET_LBA_STATUS {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR StartingLBA[8];
     UCHAR AllocationLength[4];
     UCHAR Reserved2;
     UCHAR Control;
   } GET_LBA_STATUS;
   struct _TOKEN_OPERATION {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR Reserved2[4];
     UCHAR ListIdentifier[4];
     UCHAR ParameterListLength[4];
     UCHAR GroupNumber: 5;
     UCHAR Reserved3: 3;
     UCHAR Control;
   } TOKEN_OPERATION;
   struct _RECEIVE_TOKEN_INFORMATION {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR ListIdentifier[4];
     UCHAR Reserved2[4];
     UCHAR AllocationLength[4];
     UCHAR Reserved3;
     UCHAR Control;
   } RECEIVE_TOKEN_INFORMATION;
   struct _WRITE_BUFFER {
     UCHAR OperationCode;
     UCHAR Mode:5;
     UCHAR ModeSpecific:3;
     UCHAR BufferID;
     UCHAR BufferOffset[3];
     UCHAR ParameterListLength[3];
     UCHAR Control;
   } WRITE_BUFFER;
   struct _CLOSE_ZONE {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR ZoneId[8];
     UCHAR Reserved2[4];
     UCHAR All:1;
     UCHAR Reserved3:7;
     UCHAR Control;
   } CLOSE_ZONE;
   struct _FINISH_ZONE {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR ZoneId[8];
     UCHAR Reserved2[4];
     UCHAR All:1;
     UCHAR Reserved3:7;
     UCHAR Control;
   } FINISH_ZONE;
   struct _OPEN_ZONE {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR ZoneId[8];
     UCHAR Reserved2[4];
     UCHAR All:1;
     UCHAR Reserved3:7;
     UCHAR Control;
   } OPEN_ZONE;
   struct _RESET_WRITE_POINTER {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR ZoneId[8];
     UCHAR Reserved2[4];
     UCHAR All:1;
     UCHAR Reserved3:7;
     UCHAR Control;
   } RESET_WRITE_POINTER;
   struct _REPORT_ZONES {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR ZoneStartLBA[8];
     UCHAR AllocationLength[4];
     UCHAR ReportingOptions:6;
     UCHAR Reserved3:1;
     UCHAR Partial:1;
     UCHAR Control;
   } REPORT_ZONES;
   struct _GET_PHYSICAL_ELEMENT_STATUS {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR Reserved2[4];
     UCHAR StartingElement[4];
     UCHAR AllocationLength[4];
     UCHAR ReportType:4;
     UCHAR Reserved3:2;
     UCHAR Filter:2;
     UCHAR Control;
   } GET_PHYSICAL_ELEMENT_STATUS;
   struct _REMOVE_ELEMENT_AND_TRUNCATE {
     UCHAR OperationCode;
     UCHAR ServiceAction:5;
     UCHAR Reserved1:3;
     UCHAR RequestedCapacity[8];
     UCHAR ElementIdentifier[4];
     UCHAR Reserved2;
     UCHAR Control;
   } REMOVE_ELEMENT_AND_TRUNCATE;
   ULONG AsUlong[4];
   UCHAR AsByte[16];
 } CDB, *PCDB;

 typedef struct _NOTIFICATION_EVENT_STATUS_HEADER {
   UCHAR EventDataLength[2];
   UCHAR NotificationClass:3;
   UCHAR Reserved:4;
   UCHAR NEA:1;
   UCHAR SupportedEventClasses;
   UCHAR ClassEventData[0];
 } NOTIFICATION_EVENT_STATUS_HEADER, *PNOTIFICATION_EVENT_STATUS_HEADER;

 typedef struct _NOTIFICATION_OPERATIONAL_STATUS {
   UCHAR OperationalEvent:4;
   UCHAR Reserved1:4;
   UCHAR OperationalStatus:4;
   UCHAR Reserved2:3;
   UCHAR PersistentPrevented:1;
   UCHAR Operation[2];
 } NOTIFICATION_OPERATIONAL_STATUS, *PNOTIFICATION_OPERATIONAL_STATUS;

 typedef struct _NOTIFICATION_POWER_STATUS {
   UCHAR PowerEvent:4;
   UCHAR Reserved:4;
   UCHAR PowerStatus;
   UCHAR Reserved2[2];
 } NOTIFICATION_POWER_STATUS, *PNOTIFICATION_POWER_STATUS;

 typedef struct _NOTIFICATION_EXTERNAL_STATUS {
   UCHAR ExternalEvent:4;
   UCHAR Reserved1:4;
   UCHAR ExternalStatus:4;
   UCHAR Reserved2:3;
   UCHAR PersistentPrevented:1;
   UCHAR Request[2];
 } NOTIFICATION_EXTERNAL_STATUS, *PNOTIFICATION_EXTERNAL_STATUS;

 typedef struct _NOTIFICATION_MEDIA_STATUS {
   UCHAR MediaEvent:4;
   UCHAR Reserved:4;
   _ANONYMOUS_UNION union {
     UCHAR PowerStatus;
     UCHAR MediaStatus;
     _ANONYMOUS_STRUCT struct {
       UCHAR DoorTrayOpen:1;
       UCHAR MediaPresent:1;
       UCHAR ReservedX:6;
     } DUMMYSTRUCTNAME;
   } DUMMYUNIONNAME;
   UCHAR StartSlot;
   UCHAR EndSlot;
 } NOTIFICATION_MEDIA_STATUS, *PNOTIFICATION_MEDIA_STATUS;

 typedef struct _NOTIFICATION_MULTI_HOST_STATUS {
   UCHAR MultiHostEvent:4;
   UCHAR Reserved1:4;
   UCHAR MultiHostStatus:4;
   UCHAR Reserved2:3;
   UCHAR PersistentPrevented:1;
   UCHAR Priority[2];
 } NOTIFICATION_MULTI_HOST_STATUS, *PNOTIFICATION_MULTI_HOST_STATUS;

 typedef struct _NOTIFICATION_BUSY_STATUS {
   UCHAR DeviceBusyEvent:4;
   UCHAR Reserved:4;
   UCHAR DeviceBusyStatus;
   UCHAR Time[2];
 } NOTIFICATION_BUSY_STATUS, *PNOTIFICATION_BUSY_STATUS;

 typedef struct _SUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA {
   UCHAR Reserved1[6];
   UCHAR SupportedSecurityListLength[2];
   UCHAR SupportedSecurityProtocol[0];
 } SUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA, *PSUPPORTED_SECURITY_PROTOCOLS_PARAMETER_DATA;

 typedef struct _READ_DVD_STRUCTURES_HEADER {
   UCHAR Length[2];
   UCHAR Reserved[2];
   UCHAR Data[0];
 } READ_DVD_STRUCTURES_HEADER, *PREAD_DVD_STRUCTURES_HEADER;

 typedef struct _CDVD_KEY_HEADER {
   UCHAR DataLength[2];
   UCHAR Reserved[2];
   UCHAR Data[0];
 } CDVD_KEY_HEADER, *PCDVD_KEY_HEADER;

 typedef struct _CDVD_REPORT_AGID_DATA {
   UCHAR Reserved1[3];
   UCHAR Reserved2:6;
   UCHAR AGID:2;
 } CDVD_REPORT_AGID_DATA, *PCDVD_REPORT_AGID_DATA;

 typedef struct _CDVD_CHALLENGE_KEY_DATA {
   UCHAR ChallengeKeyValue[10];
   UCHAR Reserved[2];
 } CDVD_CHALLENGE_KEY_DATA, *PCDVD_CHALLENGE_KEY_DATA;

 typedef struct _CDVD_KEY_DATA {
   UCHAR Key[5];
   UCHAR Reserved[3];
 } CDVD_KEY_DATA, *PCDVD_KEY_DATA;

 typedef struct _CDVD_REPORT_ASF_DATA {
   UCHAR Reserved1[3];
   UCHAR Success:1;
   UCHAR Reserved2:7;
 } CDVD_REPORT_ASF_DATA, *PCDVD_REPORT_ASF_DATA;

 typedef struct _CDVD_TITLE_KEY_HEADER {
   UCHAR DataLength[2];
   UCHAR Reserved1[1];
   UCHAR Reserved2:3;
   UCHAR CGMS:2;
   UCHAR CP_SEC:1;
   UCHAR CPM:1;
   UCHAR Zero:1;
   CDVD_KEY_DATA TitleKey;
 } CDVD_TITLE_KEY_HEADER, *PCDVD_TITLE_KEY_HEADER;

 typedef struct _FORMAT_DESCRIPTOR {
   UCHAR NumberOfBlocks[4];
   UCHAR FormatSubType:2;
   UCHAR FormatType:6;
   UCHAR BlockLength[3];
 } FORMAT_DESCRIPTOR, *PFORMAT_DESCRIPTOR;

 typedef struct _FORMAT_LIST_HEADER {
   UCHAR Reserved;
   UCHAR VendorSpecific:1;
   UCHAR Immediate:1;
   UCHAR TryOut:1;
   UCHAR IP:1;
   UCHAR STPF:1;
   UCHAR DCRT:1;
   UCHAR DPRY:1;
   UCHAR FOV:1;
   UCHAR FormatDescriptorLength[2];
   FORMAT_DESCRIPTOR Descriptors[0];
 } FORMAT_LIST_HEADER, *PFORMAT_LIST_HEADER;

 typedef struct _FORMATTED_CAPACITY_DESCRIPTOR {
   UCHAR NumberOfBlocks[4];
   UCHAR Maximum:1;
   UCHAR Valid:1;
   UCHAR FormatType:6;
   UCHAR BlockLength[3];
 } FORMATTED_CAPACITY_DESCRIPTOR, *PFORMATTED_CAPACITY_DESCRIPTOR;

 typedef struct _FORMATTED_CAPACITY_LIST {
   UCHAR Reserved[3];
   UCHAR CapacityListLength;
   FORMATTED_CAPACITY_DESCRIPTOR Descriptors[0];
 } FORMATTED_CAPACITY_LIST, *PFORMATTED_CAPACITY_LIST;

 typedef struct _OPC_TABLE_ENTRY {
   UCHAR Speed[2];
   UCHAR OPCValue[6];
 } OPC_TABLE_ENTRY, *POPC_TABLE_ENTRY;

 typedef struct _DISC_INFORMATION {
   UCHAR Length[2];
   UCHAR DiscStatus:2;
   UCHAR LastSessionStatus:2;
   UCHAR Erasable:1;
   UCHAR Reserved1:3;
   UCHAR FirstTrackNumber;
   UCHAR NumberOfSessionsLsb;
   UCHAR LastSessionFirstTrackLsb;
   UCHAR LastSessionLastTrackLsb;
   UCHAR MrwStatus:2;
   UCHAR MrwDirtyBit:1;
   UCHAR Reserved2:2;
   UCHAR URU:1;
   UCHAR DBC_V:1;
   UCHAR DID_V:1;
   UCHAR DiscType;
   UCHAR NumberOfSessionsMsb;
   UCHAR LastSessionFirstTrackMsb;
   UCHAR LastSessionLastTrackMsb;
   UCHAR DiskIdentification[4];
   UCHAR LastSessionLeadIn[4];
   UCHAR LastPossibleLeadOutStartTime[4];
   UCHAR DiskBarCode[8];
   UCHAR Reserved4;
   UCHAR NumberOPCEntries;
   OPC_TABLE_ENTRY OPCTable[1];
 } DISC_INFORMATION, *PDISC_INFORMATION;

 typedef struct _DISK_INFORMATION {
   UCHAR Length[2];
   UCHAR DiskStatus:2;
   UCHAR LastSessionStatus:2;
   UCHAR Erasable:1;
   UCHAR Reserved1:3;
   UCHAR FirstTrackNumber;
   UCHAR NumberOfSessions;
   UCHAR LastSessionFirstTrack;
   UCHAR LastSessionLastTrack;
   UCHAR Reserved2:5;
   UCHAR GEN:1;
   UCHAR DBC_V:1;
   UCHAR DID_V:1;
   UCHAR DiskType;
   UCHAR Reserved3[3];
   UCHAR DiskIdentification[4];
   UCHAR LastSessionLeadIn[4];
   UCHAR LastPossibleStartTime[4];
   UCHAR DiskBarCode[8];
   UCHAR Reserved4;
   UCHAR NumberOPCEntries;
   OPC_TABLE_ENTRY OPCTable[0];
 } DISK_INFORMATION, *PDISK_INFORMATION;

 typedef struct _DATA_BLOCK_HEADER {
   UCHAR DataMode;
   UCHAR Reserved[4];
   _ANONYMOUS_UNION union {
     UCHAR LogicalBlockAddress[4];
     struct {
       UCHAR Reserved;
       UCHAR M;
       UCHAR S;
       UCHAR F;
     } MSF;
   } DUMMYUNIONNAME;
 } DATA_BLOCK_HEADER, *PDATA_BLOCK_HEADER;

 typedef struct _TRACK_INFORMATION {
   UCHAR Length[2];
   UCHAR TrackNumber;
   UCHAR SessionNumber;
   UCHAR Reserved1;
   UCHAR TrackMode:4;
   UCHAR Copy:1;
   UCHAR Damage:1;
   UCHAR Reserved2:2;
   UCHAR DataMode:4;
   UCHAR FP:1;
   UCHAR Packet:1;
   UCHAR Blank:1;
   UCHAR RT:1;
   UCHAR NWA_V:1;
   UCHAR Reserved3:7;
   UCHAR TrackStartAddress[4];
   UCHAR NextWritableAddress[4];
   UCHAR FreeBlocks[4];
   UCHAR FixedPacketSize[4];
 } TRACK_INFORMATION, *PTRACK_INFORMATION;

 typedef struct _TRACK_INFORMATION2 {
   UCHAR Length[2];
   UCHAR TrackNumberLsb;
   UCHAR SessionNumberLsb;
   UCHAR Reserved4;
   UCHAR TrackMode:4;
   UCHAR Copy:1;
   UCHAR Damage:1;
   UCHAR Reserved5:2;
   UCHAR DataMode:4;
   UCHAR FixedPacket:1;
   UCHAR Packet:1;
   UCHAR Blank:1;
   UCHAR ReservedTrack:1;
   UCHAR NWA_V:1;
   UCHAR LRA_V:1;
   UCHAR Reserved6:6;
   UCHAR TrackStartAddress[4];
   UCHAR NextWritableAddress[4];
   UCHAR FreeBlocks[4];
   UCHAR FixedPacketSize[4];
   UCHAR TrackSize[4];
   UCHAR LastRecordedAddress[4];
   UCHAR TrackNumberMsb;
   UCHAR SessionNumberMsb;
   UCHAR Reserved7[2];
 } TRACK_INFORMATION2, *PTRACK_INFORMATION2;

 typedef struct _TRACK_INFORMATION3 {
   UCHAR Length[2];
   UCHAR TrackNumberLsb;
   UCHAR SessionNumberLsb;
   UCHAR Reserved4;
   UCHAR TrackMode:4;
   UCHAR Copy:1;
   UCHAR Damage:1;
   UCHAR Reserved5:2;
   UCHAR DataMode:4;
   UCHAR FixedPacket:1;
   UCHAR Packet:1;
   UCHAR Blank:1;
   UCHAR ReservedTrack:1;
   UCHAR NWA_V:1;
   UCHAR LRA_V:1;
   UCHAR Reserved6:6;
   UCHAR TrackStartAddress[4];
   UCHAR NextWritableAddress[4];
   UCHAR FreeBlocks[4];
   UCHAR FixedPacketSize[4];
   UCHAR TrackSize[4];
   UCHAR LastRecordedAddress[4];
   UCHAR TrackNumberMsb;
   UCHAR SessionNumberMsb;
   UCHAR Reserved7[2];
   UCHAR ReadCompatibilityLba[4];
 } TRACK_INFORMATION3, *PTRACK_INFORMATION3;

 typedef struct _PERFORMANCE_DESCRIPTOR {
   UCHAR RandomAccess:1;
   UCHAR Exact:1;
   UCHAR RestoreDefaults:1;
   UCHAR WriteRotationControl:2;
   UCHAR Reserved1:3;
   UCHAR Reserved[3];
   UCHAR StartLba[4];
   UCHAR EndLba[4];
   UCHAR ReadSize[4];
   UCHAR ReadTime[4];
   UCHAR WriteSize[4];
   UCHAR WriteTime[4];
 } PERFORMANCE_DESCRIPTOR, *PPERFORMANCE_DESCRIPTOR;

 typedef struct _SCSI_EXTENDED_MESSAGE {
   UCHAR InitialMessageCode;
   UCHAR MessageLength;
   UCHAR MessageType;
   union _EXTENDED_ARGUMENTS {
     struct {
       UCHAR Modifier[4];
     } Modify;
     struct {
       UCHAR TransferPeriod;
       UCHAR ReqAckOffset;
     } Synchronous;
     struct{
       UCHAR Width;
     } Wide;
   } ExtendedArguments;
 }SCSI_EXTENDED_MESSAGE, *PSCSI_EXTENDED_MESSAGE;

 #ifndef _INQUIRYDATA_DEFINED /* also in minitape.h */
 #define _INQUIRYDATA_DEFINED

 #define INQUIRYDATABUFFERSIZE 36

 #if (NTDDI_VERSION < NTDDI_WINXP)
 typedef struct _INQUIRYDATA {
   UCHAR DeviceType:5;
   UCHAR DeviceTypeQualifier:3;
   UCHAR DeviceTypeModifier:7;
   UCHAR RemovableMedia:1;
   UCHAR Versions;
   UCHAR ResponseDataFormat:4;
   UCHAR HiSupport:1;
   UCHAR NormACA:1;
   UCHAR ReservedBit:1;
   UCHAR AERC:1;
   UCHAR AdditionalLength;
   UCHAR Reserved[2];
   UCHAR SoftReset:1;
   UCHAR CommandQueue:1;
   UCHAR Reserved2:1;
   UCHAR LinkedCommands:1;
   UCHAR Synchronous:1;
   UCHAR Wide16Bit:1;
   UCHAR Wide32Bit:1;
   UCHAR RelativeAddressing:1;
   UCHAR VendorId[8];
   UCHAR ProductId[16];
   UCHAR ProductRevisionLevel[4];
   UCHAR VendorSpecific[20];
   UCHAR Reserved3[40];
 } INQUIRYDATA, *PINQUIRYDATA;
 #else
 typedef struct _INQUIRYDATA {
   UCHAR DeviceType:5;
   UCHAR DeviceTypeQualifier:3;
   UCHAR DeviceTypeModifier:7;
   UCHAR RemovableMedia:1;
   _ANONYMOUS_UNION union {
     UCHAR Versions;
     _ANONYMOUS_STRUCT struct {
       UCHAR ANSIVersion:3;
       UCHAR ECMAVersion:3;
       UCHAR ISOVersion:2;
     } DUMMYSTRUCTNAME;
   } DUMMYUNIONNAME;
   UCHAR ResponseDataFormat:4;
   UCHAR HiSupport:1;
   UCHAR NormACA:1;
   UCHAR TerminateTask:1;
   UCHAR AERC:1;
   UCHAR AdditionalLength;
   UCHAR Reserved;
   UCHAR Addr16:1;
   UCHAR Addr32:1;
   UCHAR AckReqQ:1;
   UCHAR MediumChanger:1;
   UCHAR MultiPort:1;
   UCHAR ReservedBit2:1;
   UCHAR EnclosureServices:1;
   UCHAR ReservedBit3:1;
   UCHAR SoftReset:1;
   UCHAR CommandQueue:1;
   UCHAR TransferDisable:1;
   UCHAR LinkedCommands:1;
   UCHAR Synchronous:1;
   UCHAR Wide16Bit:1;
   UCHAR Wide32Bit:1;
   UCHAR RelativeAddressing:1;
   UCHAR VendorId[8];
   UCHAR ProductId[16];
   UCHAR ProductRevisionLevel[4];
   UCHAR VendorSpecific[20];
   UCHAR Reserved3[40];
 } INQUIRYDATA, *PINQUIRYDATA;
 #endif /* (NTDDI_VERSION < NTDDI_WINXP) */

 #endif /* _INQUIRYDATA_DEFINED */

 typedef struct _VPD_MEDIA_SERIAL_NUMBER_PAGE {
   UCHAR DeviceType:5;
   UCHAR DeviceTypeQualifier:3;
   UCHAR PageCode;
   UCHAR Reserved;
   UCHAR PageLength;
   UCHAR SerialNumber[0];
 } VPD_MEDIA_SERIAL_NUMBER_PAGE, *PVPD_MEDIA_SERIAL_NUMBER_PAGE;

 typedef struct _VPD_SERIAL_NUMBER_PAGE {
   UCHAR DeviceType:5;
   UCHAR DeviceTypeQualifier:3;
   UCHAR PageCode;
   UCHAR Reserved;
   UCHAR PageLength;
   UCHAR SerialNumber[0];
 } VPD_SERIAL_NUMBER_PAGE, *PVPD_SERIAL_NUMBER_PAGE;

 typedef enum _VPD_CODE_SET {
   VpdCodeSetReserved = 0,
   VpdCodeSetBinary = 1,
   VpdCodeSetAscii = 2,
   VpdCodeSetUTF8 = 3
 } VPD_CODE_SET, *PVPD_CODE_SET;

 typedef enum _VPD_ASSOCIATION {
   VpdAssocDevice = 0,
   VpdAssocPort = 1,
   VpdAssocTarget = 2,
   VpdAssocReserved1 = 3,
   VpdAssocReserved2 = 4
 } VPD_ASSOCIATION, *PVPD_ASSOCIATION;

 typedef enum _VPD_IDENTIFIER_TYPE {
   VpdIdentifierTypeVendorSpecific = 0,
   VpdIdentifierTypeVendorId = 1,
   VpdIdentifierTypeEUI64 = 2,
   VpdIdentifierTypeFCPHName = 3,
   VpdIdentifierTypePortRelative = 4,
   VpdIdentifierTypeTargetPortGroup = 5,
   VpdIdentifierTypeLogicalUnitGroup = 6,
   VpdIdentifierTypeMD5LogicalUnitId = 7,
   VpdIdentifierTypeSCSINameString = 8
 } VPD_IDENTIFIER_TYPE, *PVPD_IDENTIFIER_TYPE;

 typedef struct _VPD_IDENTIFICATION_DESCRIPTOR {
   UCHAR CodeSet:4;
   UCHAR Reserved:4;
   UCHAR IdentifierType:4;
   UCHAR Association:2;
   UCHAR Reserved2:2;
   UCHAR Reserved3;
   UCHAR IdentifierLength;
   UCHAR Identifier[0];
 } VPD_IDENTIFICATION_DESCRIPTOR, *PVPD_IDENTIFICATION_DESCRIPTOR;

 typedef struct _VPD_IDENTIFICATION_PAGE {
   UCHAR DeviceType:5;
   UCHAR DeviceTypeQualifier:3;
   UCHAR PageCode;
   UCHAR Reserved;
   UCHAR PageLength;
   UCHAR Descriptors[0];
 } VPD_IDENTIFICATION_PAGE, *PVPD_IDENTIFICATION_PAGE;

 typedef struct _VPD_SUPPORTED_PAGES_PAGE {
   UCHAR DeviceType:5;
   UCHAR DeviceTypeQualifier:3;
   UCHAR PageCode;
   UCHAR Reserved;
   UCHAR PageLength;
   UCHAR SupportedPageList[0];
 } VPD_SUPPORTED_PAGES_PAGE, *PVPD_SUPPORTED_PAGES_PAGE;

 typedef struct _PRI_REGISTRATION_LIST {
   UCHAR Generation[4];
   UCHAR AdditionalLength[4];
   UCHAR ReservationKeyList[0][8];
 } PRI_REGISTRATION_LIST, *PPRI_REGISTRATION_LIST;

 typedef struct _PRI_RESERVATION_DESCRIPTOR {
   UCHAR ReservationKey[8];
   UCHAR ScopeSpecificAddress[4];
   UCHAR Reserved;
   UCHAR Type:4;
   UCHAR Scope:4;
   UCHAR Obsolete[2];
 } PRI_RESERVATION_DESCRIPTOR, *PPRI_RESERVATION_DESCRIPTOR;

 typedef struct _PRI_RESERVATION_LIST {
   UCHAR Generation[4];
   UCHAR AdditionalLength[4];
   PRI_RESERVATION_DESCRIPTOR Reservations[0];
 } PRI_RESERVATION_LIST, *PPRI_RESERVATION_LIST;

 typedef struct _PRO_PARAMETER_LIST {
   UCHAR ReservationKey[8];
   UCHAR ServiceActionReservationKey[8];
   UCHAR ScopeSpecificAddress[4];
   UCHAR ActivatePersistThroughPowerLoss:1;
   UCHAR Reserved1:7;
   UCHAR Reserved2;
   UCHAR Obsolete[2];
 } PRO_PARAMETER_LIST, *PPRO_PARAMETER_LIST;

 typedef struct _SENSE_DATA {
   UCHAR ErrorCode:7;
   UCHAR Valid:1;
   UCHAR SegmentNumber;
   UCHAR SenseKey:4;
   UCHAR Reserved:1;
   UCHAR IncorrectLength:1;
   UCHAR EndOfMedia:1;
   UCHAR FileMark:1;
   UCHAR Information[4];
   UCHAR AdditionalSenseLength;
   UCHAR CommandSpecificInformation[4];
   UCHAR AdditionalSenseCode;
   UCHAR AdditionalSenseCodeQualifier;
   UCHAR FieldReplaceableUnitCode;
   UCHAR SenseKeySpecific[3];
 } SENSE_DATA, *PSENSE_DATA;

 /* Read Capacity Data. Returned in Big Endian format */
 typedef struct _READ_CAPACITY_DATA {
   ULONG LogicalBlockAddress;
   ULONG BytesPerBlock;
 } READ_CAPACITY_DATA, *PREAD_CAPACITY_DATA;

 typedef struct _READ_CAPACITY_DATA_EX {
   LARGE_INTEGER LogicalBlockAddress;
   ULONG BytesPerBlock;
 } READ_CAPACITY_DATA_EX, *PREAD_CAPACITY_DATA_EX;

 /* Read Block Limits Data. Returned in Big Endian format */
 typedef struct _READ_BLOCK_LIMITS {
   UCHAR Reserved;
   UCHAR BlockMaximumSize[3];
   UCHAR BlockMinimumSize[2];
 } READ_BLOCK_LIMITS_DATA, *PREAD_BLOCK_LIMITS_DATA;

 typedef struct _READ_BUFFER_CAPACITY_DATA {
   UCHAR DataLength[2];
   UCHAR Reserved1;
   UCHAR BlockDataReturned:1;
   UCHAR Reserved4:7;
   UCHAR TotalBufferSize[4];
   UCHAR AvailableBufferSize[4];
 } READ_BUFFER_CAPACITY_DATA, *PREAD_BUFFER_CAPACITY_DATA;

 typedef struct _MODE_PARAMETER_HEADER {
   UCHAR ModeDataLength;
   UCHAR MediumType;
   UCHAR DeviceSpecificParameter;
   UCHAR BlockDescriptorLength;
 } MODE_PARAMETER_HEADER, *PMODE_PARAMETER_HEADER;

 typedef struct _MODE_PARAMETER_HEADER10 {
   UCHAR ModeDataLength[2];
   UCHAR MediumType;
   UCHAR DeviceSpecificParameter;
   UCHAR Reserved[2];
   UCHAR BlockDescriptorLength[2];
 } MODE_PARAMETER_HEADER10, *PMODE_PARAMETER_HEADER10;

 typedef struct _MODE_PARAMETER_BLOCK {
   UCHAR DensityCode;
   UCHAR NumberOfBlocks[3];
   UCHAR Reserved;
   UCHAR BlockLength[3];
 } MODE_PARAMETER_BLOCK, *PMODE_PARAMETER_BLOCK;

 typedef struct _MODE_DISCONNECT_PAGE {
   UCHAR PageCode:6;
   UCHAR Reserved:1;
   UCHAR PageSavable:1;
   UCHAR PageLength;
   UCHAR BufferFullRatio;
   UCHAR BufferEmptyRatio;
   UCHAR BusInactivityLimit[2];
   UCHAR BusDisconnectTime[2];
   UCHAR BusConnectTime[2];
   UCHAR MaximumBurstSize[2];
   UCHAR DataTransferDisconnect:2;
   UCHAR Reserved2[3];
 } MODE_DISCONNECT_PAGE, *PMODE_DISCONNECT_PAGE;

 typedef struct _MODE_CACHING_PAGE {
   UCHAR PageCode:6;
   UCHAR Reserved:1;
   UCHAR PageSavable:1;
   UCHAR PageLength;
   UCHAR ReadDisableCache:1;
   UCHAR MultiplicationFactor:1;
   UCHAR WriteCacheEnable:1;
   UCHAR Reserved2:5;
   UCHAR WriteRetensionPriority:4;
   UCHAR ReadRetensionPriority:4;
   UCHAR DisablePrefetchTransfer[2];
   UCHAR MinimumPrefetch[2];
   UCHAR MaximumPrefetch[2];
   UCHAR MaximumPrefetchCeiling[2];
 } MODE_CACHING_PAGE, *PMODE_CACHING_PAGE;

 typedef struct _MODE_CDROM_WRITE_PARAMETERS_PAGE2 {
   UCHAR PageCode:6;
   UCHAR Reserved:1;
   UCHAR PageSavable:1;
   UCHAR PageLength;
   UCHAR WriteType:4;
   UCHAR TestWrite:1;
   UCHAR LinkSizeValid:1;
   UCHAR BufferUnderrunFreeEnabled:1;
   UCHAR Reserved2:1;
   UCHAR TrackMode:4;
   UCHAR Copy:1;
   UCHAR FixedPacket:1;
   UCHAR MultiSession:2;
   UCHAR DataBlockType:4;
   UCHAR Reserved3:4;
   UCHAR LinkSize;
   UCHAR Reserved4;
   UCHAR HostApplicationCode:6;
   UCHAR Reserved5:2;
   UCHAR SessionFormat;
   UCHAR Reserved6;
   UCHAR PacketSize[4];
   UCHAR AudioPauseLength[2];
   UCHAR MediaCatalogNumber[16];
   UCHAR ISRC[16];
   UCHAR SubHeaderData[4];
 } MODE_CDROM_WRITE_PARAMETERS_PAGE2, *PMODE_CDROM_WRITE_PARAMETERS_PAGE2;

 typedef struct _MODE_MRW_PAGE {
   UCHAR PageCode:6;
   UCHAR Reserved:1;
   UCHAR PageSavable:1;
   UCHAR PageLength;
   UCHAR Reserved1;
   UCHAR LbaSpace:1;
   UCHAR Reserved2:7;
   UCHAR Reserved3[4];
 } MODE_MRW_PAGE, *PMODE_MRW_PAGE;

 typedef struct _MODE_FLEXIBLE_DISK_PAGE {
   UCHAR PageCode:6;
   UCHAR Reserved:1;
   UCHAR PageSavable:1;
   UCHAR PageLength;
   UCHAR TransferRate[2];
   UCHAR NumberOfHeads;
   UCHAR SectorsPerTrack;
   UCHAR BytesPerSector[2];
   UCHAR NumberOfCylinders[2];
   UCHAR StartWritePrecom[2];
   UCHAR StartReducedCurrent[2];
   UCHAR StepRate[2];
   UCHAR StepPluseWidth;
   UCHAR HeadSettleDelay[2];
   UCHAR MotorOnDelay;
   UCHAR MotorOffDelay;
   UCHAR Reserved2:5;
   UCHAR MotorOnAsserted:1;
   UCHAR StartSectorNumber:1;
   UCHAR TrueReadySignal:1;
   UCHAR StepPlusePerCyclynder:4;
   UCHAR Reserved3:4;
   UCHAR WriteCompenstation;
   UCHAR HeadLoadDelay;
   UCHAR HeadUnloadDelay;
   UCHAR Pin2Usage:4;
   UCHAR Pin34Usage:4;
   UCHAR Pin1Usage:4;
   UCHAR Pin4Usage:4;
   UCHAR MediumRotationRate[2];
   UCHAR Reserved4[2];
 } MODE_FLEXIBLE_DISK_PAGE, *PMODE_FLEXIBLE_DISK_PAGE;

 typedef struct _MODE_FORMAT_PAGE {
   UCHAR PageCode:6;
   UCHAR Reserved:1;
   UCHAR PageSavable:1;
   UCHAR PageLength;
   UCHAR TracksPerZone[2];
   UCHAR AlternateSectorsPerZone[2];
   UCHAR AlternateTracksPerZone[2];
   UCHAR AlternateTracksPerLogicalUnit[2];
   UCHAR SectorsPerTrack[2];
   UCHAR BytesPerPhysicalSector[2];
   UCHAR Interleave[2];
   UCHAR TrackSkewFactor[2];
   UCHAR CylinderSkewFactor[2];
   UCHAR Reserved2:4;
   UCHAR SurfaceFirst:1;
   UCHAR RemovableMedia:1;
   UCHAR HardSectorFormating:1;
   UCHAR SoftSectorFormating:1;
   UCHAR Reserved3[3];
 } MODE_FORMAT_PAGE, *PMODE_FORMAT_PAGE;

 typedef struct _MODE_RIGID_GEOMETRY_PAGE {
   UCHAR PageCode:6;
   UCHAR Reserved:1;
   UCHAR PageSavable:1;
   UCHAR PageLength;
   UCHAR NumberOfCylinders[3];
   UCHAR NumberOfHeads;
   UCHAR StartWritePrecom[3];
   UCHAR StartReducedCurrent[3];
   UCHAR DriveStepRate[2];
   UCHAR LandZoneCyclinder[3];
   UCHAR RotationalPositionLock:2;
   UCHAR Reserved2:6;
   UCHAR RotationOffset;
   UCHAR Reserved3;
   UCHAR RoataionRate[2];
   UCHAR Reserved4[2];
 } MODE_RIGID_GEOMETRY_PAGE, *PMODE_RIGID_GEOMETRY_PAGE;

 typedef struct _MODE_READ_WRITE_RECOVERY_PAGE {
   UCHAR PageCode:6;
   UCHAR Reserved1:1;
   UCHAR PSBit:1;
   UCHAR PageLength;
   UCHAR DCRBit:1;
   UCHAR DTEBit:1;
   UCHAR PERBit:1;
   UCHAR EERBit:1;
   UCHAR RCBit:1;
   UCHAR TBBit:1;
   UCHAR ARRE:1;
   UCHAR AWRE:1;
   UCHAR ReadRetryCount;
   UCHAR Reserved4[4];
   UCHAR WriteRetryCount;
   UCHAR Reserved5[3];
 } MODE_READ_WRITE_RECOVERY_PAGE, *PMODE_READ_WRITE_RECOVERY_PAGE;

 typedef struct _MODE_READ_RECOVERY_PAGE {
   UCHAR PageCode:6;
   UCHAR Reserved1:1;
   UCHAR PSBit:1;
   UCHAR PageLength;
   UCHAR DCRBit:1;
   UCHAR DTEBit:1;
   UCHAR PERBit:1;
   UCHAR Reserved2:1;
   UCHAR RCBit:1;
   UCHAR TBBit:1;
   UCHAR Reserved3:2;
   UCHAR ReadRetryCount;
   UCHAR Reserved4[4];
 } MODE_READ_RECOVERY_PAGE, *PMODE_READ_RECOVERY_PAGE;

 typedef struct _MODE_INFO_EXCEPTIONS {
   UCHAR PageCode:6;
   UCHAR Reserved1:1;
   UCHAR PSBit:1;
   UCHAR PageLength;
   _ANONYMOUS_UNION union {
     UCHAR Flags;
     _ANONYMOUS_STRUCT struct {
       UCHAR LogErr:1;
       UCHAR Reserved2:1;
       UCHAR Test:1;
       UCHAR Dexcpt:1;
       UCHAR Reserved3:3;
       UCHAR Perf:1;
     } DUMMYSTRUCTNAME;
   } DUMMYUNIONNAME;
   UCHAR ReportMethod:4;
   UCHAR Reserved4:4;
   UCHAR IntervalTimer[4];
   UCHAR ReportCount[4];
 } MODE_INFO_EXCEPTIONS, *PMODE_INFO_EXCEPTIONS;

 typedef struct _POWER_CONDITION_PAGE {
   UCHAR PageCode:6;
   UCHAR Reserved:1;
   UCHAR PSBit:1;
   UCHAR PageLength;
   UCHAR Reserved2;
   UCHAR Standby:1;
   UCHAR Idle:1;
   UCHAR Reserved3:6;
   UCHAR IdleTimer[4];
   UCHAR StandbyTimer[4];
 } POWER_CONDITION_PAGE, *PPOWER_CONDITION_PAGE;

 typedef struct _CDDA_OUTPUT_PORT {
   UCHAR ChannelSelection:4;
   UCHAR Reserved:4;
   UCHAR Volume;
 } CDDA_OUTPUT_PORT, *PCDDA_OUTPUT_PORT;

 typedef struct _CDAUDIO_CONTROL_PAGE {
   UCHAR PageCode:6;
   UCHAR Reserved:1;
   UCHAR PSBit:1;
   UCHAR PageLength;
   UCHAR Reserved2:1;
   UCHAR StopOnTrackCrossing:1;
   UCHAR Immediate:1;
   UCHAR Reserved3:5;
   UCHAR Reserved4[3];
   UCHAR Obsolete[2];
   CDDA_OUTPUT_PORT CDDAOutputPorts[4];
 } CDAUDIO_CONTROL_PAGE, *PCDAUDIO_CONTROL_PAGE;

 typedef struct _CDVD_FEATURE_SET_PAGE {
   UCHAR PageCode:6;
   UCHAR Reserved:1;
   UCHAR PSBit:1;
   UCHAR PageLength;
   UCHAR CDAudio[2];
   UCHAR EmbeddedChanger[2];
   UCHAR PacketSMART[2];
   UCHAR PersistantPrevent[2];
   UCHAR EventStatusNotification[2];
   UCHAR DigitalOutput[2];
   UCHAR CDSequentialRecordable[2];
   UCHAR DVDSequentialRecordable[2];
   UCHAR RandomRecordable[2];
   UCHAR KeyExchange[2];
   UCHAR Reserved2[2];
 } CDVD_FEATURE_SET_PAGE, *PCDVD_FEATURE_SET_PAGE;

 typedef struct _CDVD_INACTIVITY_TIMEOUT_PAGE {
   UCHAR PageCode:6;
   UCHAR Reserved:1;
   UCHAR PSBit:1;
   UCHAR PageLength;
   UCHAR Reserved2[2];
   UCHAR SWPP:1;
   UCHAR DISP:1;
   UCHAR Reserved3:6;
   UCHAR Reserved4;
   UCHAR GroupOneMinimumTimeout[2];
   UCHAR GroupTwoMinimumTimeout[2];
 } CDVD_INACTIVITY_TIMEOUT_PAGE, *PCDVD_INACTIVITY_TIMEOUT_PAGE;

 typedef struct _CDVD_CAPABILITIES_PAGE {
   UCHAR PageCode:6;
   UCHAR Reserved:1;
   UCHAR PSBit:1;
   UCHAR PageLength;
   UCHAR CDRRead:1;
   UCHAR CDERead:1;
   UCHAR Method2:1;
   UCHAR DVDROMRead:1;
   UCHAR DVDRRead:1;
   UCHAR DVDRAMRead:1;
   UCHAR Reserved2:2;
   UCHAR CDRWrite:1;
   UCHAR CDEWrite:1;
   UCHAR TestWrite:1;
   UCHAR Reserved3:1;
   UCHAR DVDRWrite:1;
   UCHAR DVDRAMWrite:1;
   UCHAR Reserved4:2;
   UCHAR AudioPlay:1;
   UCHAR Composite:1;
   UCHAR DigitalPortOne:1;
   UCHAR DigitalPortTwo:1;
   UCHAR Mode2Form1:1;
   UCHAR Mode2Form2:1;
   UCHAR MultiSession:1;
   UCHAR BufferUnderrunFree:1;
   UCHAR CDDA:1;
   UCHAR CDDAAccurate:1;
   UCHAR RWSupported:1;
   UCHAR RWDeinterleaved:1;
   UCHAR C2Pointers:1;
   UCHAR ISRC:1;
   UCHAR UPC:1;
   UCHAR ReadBarCodeCapable:1;
   UCHAR Lock:1;
   UCHAR LockState:1;
   UCHAR PreventJumper:1;
   UCHAR Eject:1;
   UCHAR Reserved6:1;
   UCHAR LoadingMechanismType:3;
   UCHAR SeparateVolume:1;
   UCHAR SeperateChannelMute:1;
   UCHAR SupportsDiskPresent:1;
   UCHAR SWSlotSelection:1;
   UCHAR SideChangeCapable:1;
   UCHAR RWInLeadInReadable:1;
   UCHAR Reserved7:2;
   _ANONYMOUS_UNION union {
     UCHAR ReadSpeedMaximum[2];
     UCHAR ObsoleteReserved[2];
   } DUMMYUNIONNAME;
   UCHAR NumberVolumeLevels[2];
   UCHAR BufferSize[2];
   _ANONYMOUS_UNION union {
     UCHAR ReadSpeedCurrent[2];
     UCHAR ObsoleteReserved2[2];
   } DUMMYUNIONNAME2;
   UCHAR ObsoleteReserved3;
   UCHAR Reserved8:1;
   UCHAR BCK:1;
   UCHAR RCK:1;
   UCHAR LSBF:1;
   UCHAR Length:2;
   UCHAR Reserved9:2;
   _ANONYMOUS_UNION union {
     UCHAR WriteSpeedMaximum[2];
     UCHAR ObsoleteReserved4[2];
   } DUMMYUNIONNAME3;
   _ANONYMOUS_UNION union {
     UCHAR WriteSpeedCurrent[2];
     UCHAR ObsoleteReserved11[2];
   } DUMMYUNIONNAME4;
   _ANONYMOUS_UNION union {
     UCHAR CopyManagementRevision[2];
     UCHAR Reserved10[2];
   } DUMMYUNIONNAME5;
 } CDVD_CAPABILITIES_PAGE, *PCDVD_CAPABILITIES_PAGE;

 typedef struct _LUN_LIST {
   UCHAR LunListLength[4];
   UCHAR Reserved[4];
   UCHAR Lun[0][8];
 } LUN_LIST, *PLUN_LIST;

 typedef struct _MODE_PARM_READ_WRITE {
   MODE_PARAMETER_HEADER ParameterListHeader;
   MODE_PARAMETER_BLOCK ParameterListBlock;
 } MODE_PARM_READ_WRITE_DATA, *PMODE_PARM_READ_WRITE_DATA;

 typedef struct _PORT_OUTPUT {
   UCHAR ChannelSelection;
   UCHAR Volume;
 } PORT_OUTPUT, *PPORT_OUTPUT;

 typedef struct _AUDIO_OUTPUT {
   UCHAR CodePage;
   UCHAR ParameterLength;
   UCHAR Immediate;
   UCHAR Reserved[2];
   UCHAR LbaFormat;
   UCHAR LogicalBlocksPerSecond[2];
   PORT_OUTPUT PortOutput[4];
 } AUDIO_OUTPUT, *PAUDIO_OUTPUT;

 /* Atapi 2.5 changers */
 typedef struct _MECHANICAL_STATUS_INFORMATION_HEADER {
   UCHAR CurrentSlot:5;
   UCHAR ChangerState:2;
   UCHAR Fault:1;
   UCHAR Reserved:5;
   UCHAR MechanismState:3;
   UCHAR CurrentLogicalBlockAddress[3];
   UCHAR NumberAvailableSlots;
   UCHAR SlotTableLength[2];
 } MECHANICAL_STATUS_INFORMATION_HEADER, *PMECHANICAL_STATUS_INFORMATION_HEADER;

 typedef struct _SLOT_TABLE_INFORMATION {
   UCHAR DiscChanged:1;
   UCHAR Reserved:6;
   UCHAR DiscPresent:1;
   UCHAR Reserved2[3];
 } SLOT_TABLE_INFORMATION, *PSLOT_TABLE_INFORMATION;

 typedef struct _MECHANICAL_STATUS {
   MECHANICAL_STATUS_INFORMATION_HEADER MechanicalStatusHeader;
   SLOT_TABLE_INFORMATION SlotTableInfo[1];
 } MECHANICAL_STATUS, *PMECHANICAL_STATUS;

 /* Tape definitions */
 typedef struct _TAPE_POSITION_DATA {
   UCHAR Reserved1:2;
   UCHAR BlockPositionUnsupported:1;
   UCHAR Reserved2:3;
   UCHAR EndOfPartition:1;
   UCHAR BeginningOfPartition:1;
   UCHAR PartitionNumber;
   USHORT Reserved3;
   UCHAR FirstBlock[4];
   UCHAR LastBlock[4];
   UCHAR Reserved4;
   UCHAR NumberOfBlocks[3];
   UCHAR NumberOfBytes[4];
 } TAPE_POSITION_DATA, *PTAPE_POSITION_DATA;

 /* This structure is used to convert little endian ULONGs
    to SCSI CDB big endians values. */
 typedef union _EIGHT_BYTE {
   _ANONYMOUS_STRUCT struct {
     UCHAR Byte0;
     UCHAR Byte1;
     UCHAR Byte2;
     UCHAR Byte3;
     UCHAR Byte4;
     UCHAR Byte5;
     UCHAR Byte6;
     UCHAR Byte7;
   } DUMMYSTRUCTNAME;
   ULONGLONG AsULongLong;
 } EIGHT_BYTE, *PEIGHT_BYTE;

 typedef union _FOUR_BYTE {
   _ANONYMOUS_STRUCT struct {
     UCHAR Byte0;
     UCHAR Byte1;
     UCHAR Byte2;
     UCHAR Byte3;
   } DUMMYSTRUCTNAME;
   ULONG AsULong;
 } FOUR_BYTE, *PFOUR_BYTE;

 typedef union _TWO_BYTE {
   _ANONYMOUS_STRUCT struct {
     UCHAR Byte0;
     UCHAR Byte1;
   } DUMMYSTRUCTNAME;
   USHORT AsUShort;
 } TWO_BYTE, *PTWO_BYTE;

 /* Byte reversing macro for converting between
    big- and little-endian formats */
 #define REVERSE_BYTES_QUAD(Destination, Source) { \
   PEIGHT_BYTE _val1 = (PEIGHT_BYTE)(Destination); \
   PEIGHT_BYTE _val2 = (PEIGHT_BYTE)(Source); \
   _val1->Byte7 = _val2->Byte0; \
   _val1->Byte6 = _val2->Byte1; \
   _val1->Byte5 = _val2->Byte2; \
   _val1->Byte4 = _val2->Byte3; \
   _val1->Byte3 = _val2->Byte4; \
   _val1->Byte2 = _val2->Byte5; \
   _val1->Byte1 = _val2->Byte6; \
   _val1->Byte0 = _val2->Byte7; \
 }

 #define REVERSE_BYTES(Destination, Source) { \
   PFOUR_BYTE _val1 = (PFOUR_BYTE)(Destination); \
   PFOUR_BYTE _val2 = (PFOUR_BYTE)(Source); \
   _val1->Byte3 = _val2->Byte0; \
   _val1->Byte2 = _val2->Byte1; \
   _val1->Byte1 = _val2->Byte2; \
   _val1->Byte0 = _val2->Byte3; \
 }

 #define REVERSE_BYTES_SHORT(Destination, Source) { \
   PTWO_BYTE _val1 = (PTWO_BYTE)(Destination); \
   PTWO_BYTE _val2 = (PTWO_BYTE)(Source); \
   _val1->Byte1 = _val2->Byte0; \
   _val1->Byte0 = _val2->Byte1; \
 }

 #define REVERSE_SHORT(Short) { \
   UCHAR _val; \
   PTWO_BYTE _val2 = (PTWO_BYTE)(Short); \
   _val = _val2->Byte0; \
   _val2->Byte0 = _val2->Byte1; \
   _val2->Byte1 = _val; \
 }

 #define REVERSE_LONG(Long) { \
   UCHAR _val; \
   PFOUR_BYTE _val2 = (PFOUR_BYTE)(Long); \
   _val = _val2->Byte3; \
   _val2->Byte3 = _val2->Byte0; \
   _val2->Byte0 = _val; \
   _val = _val2->Byte2; \
   _val2->Byte2 = _val2->Byte1; \
   _val2->Byte1 = _val; \
 }

 #define WHICH_BIT(Data, Bit) { \
   UCHAR _val; \
   for (_val = 0; _val < 32; _val++) { \
     if (((Data) >> _val) == 1) { \
       break; \
     } \
   } \
   ASSERT(_val != 32); \
   (Bit) = _val; \
 }

 /* FIXME : This structure doesn't exist in the official header */
 typedef struct _MODE_CDROM_WRITE_PARAMETERS_PAGE {
   UCHAR PageLength;
   UCHAR WriteType:4;
   UCHAR TestWrite:1;
   UCHAR LinkSizeValid:1;
   UCHAR BufferUnderrunFreeEnabled:1;
   UCHAR Reserved2:1;
   UCHAR TrackMode:4;
   UCHAR Copy:1;
   UCHAR FixedPacket:1;
   UCHAR MultiSession:2;
   UCHAR DataBlockType:4;
   UCHAR Reserved3:4;
   UCHAR LinkSize;
   UCHAR Reserved4;
   UCHAR HostApplicationCode:6;
   UCHAR Reserved5:2;
   UCHAR SessionFormat;
   UCHAR Reserved6;
   UCHAR PacketSize[4];
   UCHAR AudioPauseLength[2];
   UCHAR Reserved7:7;
   UCHAR MediaCatalogNumberValid:1;
   UCHAR MediaCatalogNumber[13];
   UCHAR MediaCatalogNumberZero;
   UCHAR MediaCatalogNumberAFrame;
   UCHAR Reserved8:7;
   UCHAR ISRCValid:1;
   UCHAR ISRCCountry[2];
   UCHAR ISRCOwner[3];
   UCHAR ISRCRecordingYear[2];
   UCHAR ISRCSerialNumber[5];
   UCHAR ISRCZero;
   UCHAR ISRCAFrame;
   UCHAR ISRCReserved;
   UCHAR SubHeaderData[4];
 } MODE_CDROM_WRITE_PARAMETERS_PAGE, *PMODE_CDROM_WRITE_PARAMETERS_PAGE;

 #ifdef __cplusplus
 }
 #endif

 #endif /* _NTSCSI_ */