// ntddstor.h

typedef struct _STORAGE_PROTOCOL_DATA_DESCRIPTOR_EXT {
  ULONG                              Version;
  ULONG                              Size;
  STORAGE_PROTOCOL_SPECIFIC_DATA_EXT ProtocolSpecificData;
} STORAGE_PROTOCOL_DATA_DESCRIPTOR_EXT, *PSTORAGE_PROTOCOL_DATA_DESCRIPTOR_EXT;
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (ns-ntddstor-storage_protocol_data_descriptor_ext)

STORAGE_PROTOCOL_DATA_DESCRIPTOR_EXT structure

Description

This structure is used in conjunction with IOCTL_STORAGE_QUERY_PROPERTY and IOCTL_STORAGE_SET_PROPERTY to respectively return and set protocol-specific data from a storage device or adapter.

Members

`Version`

Version of this structure. Set this to be sizeof(STORAGE_PROTOCOL_DATA_DESCRIPTOR_EXT).

`Size`

Size, in bytes, of the buffer containing the descriptor, including the space for all protocol data. Must be >= sizeof(STORAGE_PROTOCOL_DATA_DESCRIPTOR_EXT).

`ProtocolSpecificData`

STORAGE_PROTOCOL_SPECIFIC_DATA_EXT structure that contains the protocol-specific data.

STORAGE_PROTOCOL_DATA_DESCRIPTOR_EXT - NtDoc