WdfDeviceSetPnpCapabilities function (wdfdevice.h)

Artikel
04/18/2022

[Applies to KMDF and UMDF]

The WdfDeviceSetPnpCapabilities method reports a device's Plug and Play capabilities.

Syntax

void WdfDeviceSetPnpCapabilities(
  [in] WDFDEVICE                    Device,
  [in] PWDF_DEVICE_PNP_CAPABILITIES PnpCapabilities
);

Parameters

[in] Device

A handle to a framework device object.

[in] PnpCapabilities

A pointer to a driver-allocated WDF_DEVICE_PNP_CAPABILITIES structure.

Return value

None

Remarks

A bug check occurs if the driver supplies an invalid object handle.

A driver typically calls WdfDeviceSetPnpCapabilities from within one of the following callback functions:

EvtDriverDeviceAdd
EvtDevicePrepareHardware
EvtDeviceD0Entry (if the PreviousState parameter's value is WdfPowerDeviceD3Final)
EvtDeviceSelfManagedIoInit
EvtChildListCreateDevice

If more than one driver in the device's driver stack call WdfDeviceSetPnpCapabilities, the Plug and Play manager uses the values that are supplied by the driver that is highest in the stack.

Examples

The following code examples initializes a WDF_DEVICE_PNP_CAPABILITIES structure and then calls WdfDeviceSetPnpCapabilities.

WDF_DEVICE_PNP_CAPABILITIES  pnpCaps;

WDF_DEVICE_PNP_CAPABILITIES_INIT(&pnpCaps);
pnpCaps.SurpriseRemovalOK = WdfTrue;

WdfDeviceSetPnpCapabilities(
                            device,
                            &pnpCaps
                            );

Requirements

Requirement	Value
Target Platform	Universal
Minimum KMDF version	1.0
Minimum UMDF version	2.0
Header	wdfdevice.h (include Wdf.h)
Library	Wdf01000.sys (KMDF); WUDFx02000.dll (UMDF)
IRQL	<=DISPATCH_LEVEL
DDI compliance rules	DriverCreate(kmdf), KmdfIrql(kmdf), KmdfIrql2(kmdf), KmdfIrqlExplicit(kmdf)

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