WdfDeviceSetBusInformationForChildren method
[Applies to KMDF only]
The WdfDeviceSetBusInformationForChildren method sets information about a bus that a bus driver supports. This information is available to the bus's child devices.
Syntax
VOID WdfDeviceSetBusInformationForChildren( [in] WDFDEVICE Device, [in] PPNP_BUS_INFORMATION BusInformation );
Parameters
- Device [in]
-
A handle to a framework device object.
- BusInformation [in]
-
A pointer to a caller-allocated PNP_BUS_INFORMATION structure that describes the bus.
Return value
None.
A bug check occurs if the driver supplies an invalid object handle.
Remarks
Child devices can obtain the information that WdfDeviceSetBusInformationForChildren supplies by calling WdfFdoInitQueryProperty or WdfDeviceQueryProperty.
Examples
The following code example initializes a PNP_BUS_INFORMATION structure and then calls WdfDeviceSetBusInformationForChildren.
PNP_BUS_INFORMATION busInfo;
busInfo.BusTypeGuid = GUID_DEVCLASS_TOASTER;
busInfo.LegacyBusType = PNPBus;
busInfo.BusNumber = 0;
WdfDeviceSetBusInformationForChildren(
device,
&busInfo
);
Requirements
|
Minimum KMDF version | 1.0 |
|---|---|
|
Header |
|
|
Library |
|
|
IRQL | <=DISPATCH_LEVEL |
|
DDI compliance rules | DriverCreate, KmdfIrql, KmdfIrql2 |
See also
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