[Applies to KMDF only]
The WdfDeviceIndicateWakeStatus method informs the framework that the calling bus driver has stopped waiting for a specified device to trigger a wake signal on the bus.
NTSTATUS WdfDeviceIndicateWakeStatus( WDFDEVICE Device, NTSTATUS WaitWakeStatus );
A handle to a framework device object.
An NTSTATUS status value. If the device triggered a wake signal, the caller must set this value to STATUS_SUCCESS or another status value for which NT_SUCCESS(WaitWakeStatus) equals TRUE. If the device did not trigger a wake signal or if an error was detected, the caller must provide a status value for which NT_SUCCESS(WaitWakeStatus) equals FALSE. For more information, see the following Remarks section.
If the operation succeeds, WdfDeviceIndicateWakeStatus returns STATUS_SUCCESS. Additional return values include:
||WaitWakeStatus is STATUS_PENDING or STATUS_CANCELLED.|
||The driver stack was not set up to wait for the device to trigger a wake signal.|
||The calling driver is not responsible for waiting for the device to trigger a wake signal.|
The method might return other NTSTATUS values.
A bug check occurs if the driver supplies an invalid object handle.
If NT_SUCCESS(WaitWakeStatus) equals TRUE, the framework will restore the device and system to their working states. If NT_SUCCESS(WaitWakeStatus) equals FALSE, the device and system will remain in their current states.
For more information about calling the WdfDeviceIndicateWakeStatus method, see Supporting System Wake-Up.
The following code example informs the framework that the specified device has triggered a wake signal.
NTSTATUS status; status = WdfDeviceIndicateWakeStatus( hChild, STATUS_SUCCESS );
|Minimum KMDF version||1.0|
|Header||wdfdevice.h (include Wdf.h)|
|Library||Wdf01000.sys (see Framework Library Versioning.)|
|DDI compliance rules||DriverCreate, KmdfIrql, KmdfIrql2|