// ntddscsi.h

typedef struct _STORAGE_FIRMWARE_SLOT_INFO {
  UCHAR   SlotNumber;
  BOOLEAN ReadOnly;
  UCHAR   Reserved[6];
  union {
    UCHAR     Info[8];
    ULONGLONG AsUlonglong;
  } Revision;
} STORAGE_FIRMWARE_SLOT_INFO, *PSTORAGE_FIRMWARE_SLOT_INFO;
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Windows Driver Kit DDI reference (ns-ntddscsi-storage_firmware_slot_info)

Description

The STORAGE_FIRMWARE_SLOT_INFO structure contains information about a firmware slot on a storage device.

Members

`SlotNumber`

The slot number of the firmware slot.

`ReadOnly`

Boolean value that indicates whether the firmware slot is read-only. A value of TRUE indicates that the firmware slot is read-only.

`Reserved[6]`

Reserved for system use.

`Revision`

Union that contains the firmware revision information.

`Revision.Info[8]`

Array of eight unsigned characters that contain the firmware revision information in a byte-by-byte format. It can be used to store or read the revision data as an array of bytes.

`Revision.AsUlonglong`

Unsigned long long integer that represents the firmware revision information as a 64-bit value. It provides a way to access or store the revision information as a single large integer rather than as an array of bytes.

STORAGE_FIRMWARE_SLOT_INFO - NtDoc