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WDF_POWER_POLICY_EVENT_CALLBACKS structure (wdfdevice.h)

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[Applies to KMDF and UMDF]

The WDF_POWER_POLICY_EVENT_CALLBACKS structure contains pointers to a driver's power policy event callback functions.

Syntax

typedef struct _WDF_POWER_POLICY_EVENT_CALLBACKS {
  ULONG                                       Size;
  PFN_WDF_DEVICE_ARM_WAKE_FROM_S0             EvtDeviceArmWakeFromS0;
  PFN_WDF_DEVICE_DISARM_WAKE_FROM_S0          EvtDeviceDisarmWakeFromS0;
  PFN_WDF_DEVICE_WAKE_FROM_S0_TRIGGERED       EvtDeviceWakeFromS0Triggered;
  PFN_WDF_DEVICE_ARM_WAKE_FROM_SX             EvtDeviceArmWakeFromSx;
  PFN_WDF_DEVICE_DISARM_WAKE_FROM_SX          EvtDeviceDisarmWakeFromSx;
  PFN_WDF_DEVICE_WAKE_FROM_SX_TRIGGERED       EvtDeviceWakeFromSxTriggered;
  PFN_WDF_DEVICE_ARM_WAKE_FROM_SX_WITH_REASON EvtDeviceArmWakeFromSxWithReason;
} WDF_POWER_POLICY_EVENT_CALLBACKS, *PWDF_POWER_POLICY_EVENT_CALLBACKS;

Members

Size

The size, in bytes, of this structure.

EvtDeviceArmWakeFromS0

A pointer to the driver's EvtDeviceArmWakeFromS0 event callback function, or NULL.

EvtDeviceDisarmWakeFromS0

A pointer to the driver's EvtDeviceDisarmWakeFromS0 event callback function, or NULL.

EvtDeviceWakeFromS0Triggered

A pointer to the driver's EvtDeviceWakeFromS0Triggered event callback function, or NULL.

EvtDeviceArmWakeFromSx

A pointer to the driver's EvtDeviceArmWakeFromSx event callback function, or NULL.

EvtDeviceDisarmWakeFromSx

A pointer to the driver's EvtDeviceDisarmWakeFromSx event callback function, or NULL.

EvtDeviceWakeFromSxTriggered

A pointer to the driver's EvtDeviceWakeFromSxTriggered event callback function, or NULL.

EvtDeviceArmWakeFromSxWithReason

A pointer to the driver's EvtDeviceArmWakeFromSxWithReason event callback function, or NULL.

Remarks

The WDF_POWER_POLICY_EVENT_CALLBACKS structure is used as input to the WdfDeviceInitSetPowerPolicyEventCallbacks method.

Your driver should initialize its WDF_POWER_POLICY_EVENT_CALLBACKS structure by calling WDF_POWER_POLICY_EVENT_CALLBACKS_INIT.

Requirements

Requirement Value
Minimum KMDF version 1.0
Minimum UMDF version 2.0
Header wdfdevice.h (include Wdf.h)

See also

WDF_PNPPOWER_EVENT_CALLBACKS