// ntddstor.h

typedef struct _STORAGE_DEVICE_LED_STATE_DESCRIPTOR {
  ULONG     Version;
  ULONG     Size;
  ULONGLONG State;
} STORAGE_DEVICE_LED_STATE_DESCRIPTOR, *PSTORAGE_DEVICE_LED_STATE_DESCRIPTOR;
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Windows Driver Kit DDI reference (ns-ntddstor-storage_device_led_state_descriptor)

Description

The STORAGE_DEVICE_LED_STATE_DESCRIPTOR structure describes the LED state of a device.

Members

`Version`

Version of this structure. Set to sizeof(STORAGE_DEVICE_LED_STATE_DESCRIPTOR).

`Size`

Size of this structure, in bytes. Must be >= sizeof(STORAGE_DEVICE_LED_STATE_DESCRIPTOR).

`State`

Opaque structure that contains the unit's LED state.

Remarks

The unit's LED state is returned in a STORAGE_DEVICE_LED_STATE_DESCRIPTOR structure during an IOCTL_STORAGE_QUERY_PROPERTY request with a PropertyId of StorageDeviceLedStateProperty.

STORAGE_DEVICE_LED_STATE_DESCRIPTOR - NtDoc