[Applies to KMDF and UMDF]
The WdfDeviceSetFailed method informs the framework that the driver encountered a hardware or software error that is associated with a specified device.
void WdfDeviceSetFailed( WDFDEVICE Device, WDF_DEVICE_FAILED_ACTION FailedAction );
A handle to a framework device object.
A WDF_DEVICE_FAILED_ACTION-typed enumerator that indicates whether the framework should attempt to reload the specified device's drivers.
A bug check occurs if the driver supplies an invalid object handle.
If a driver encounters an unrecoverable hardware or software error, it must call WdfDeviceSetFailed so that the system can unload the device's drivers.
Starting in UMDF version 2.15, a UMDF driver can request that the underlying bus driver re-enumerate it by calling WdfDeviceSetFailed with FailedAction set to WdfDeviceFailedAttemptRestart. The bus driver must support the GUID_REENUMERATE_SELF_INTERFACE_STANDARD interface.
Alternatively, a UMDF driver can set FailedAction to WdfDeviceFailedNoRestart.
For more information about WdfDeviceSetFailed, see Reporting Device Failures.
The following code example informs the framework that a failure has occurred. If the specified device's drivers are not supporting other devices, the framework will unload the drivers and then attempt to reload them.
WdfDeviceSetFailed( device, WdfDeviceFailedAttemptRestart );
|Minimum KMDF version||1.0|
|Minimum UMDF version||2.0|
|Header||wdfdevice.h (include Wdf.h)|
|Library||Wdf01000.sys (KMDF); WUDFx02000.dll (UMDF)|
|DDI compliance rules||DriverCreate, KmdfIrql, KmdfIrql2|
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