WdfFdoInitWdmGetPhysicalDevice function

Description

[Applies to KMDF only]

The WdfFdoInitWdmGetPhysicalDevice method retrieves a device's WDM physical device object (PDO).

Parameters

DeviceInit [in]

A pointer to a WDFDEVICE_INIT structure that the driver obtained from its EvtDriverDeviceAdd callback function.

Return value

If the operation succeeds, the method returns a pointer to a DEVICE_OBJECT structure. Otherwise the method returns NULL.

Remarks

The driver must call WdfFdoInitWdmGetPhysicalDevice before calling WdfDeviceCreate. For more information about calling WdfDeviceCreate, see Creating a Framework Device Object.

For more information about the WdfFdoInitWdmGetPhysicalDevice method, see Creating Device Objects in a Function Driver.

Examples

The following code example obtains a pointer to a DEVICE_OBJECT structure that represents a device's WDM PDO.

PDEVICE_OBJECT device;

device = WdfFdoInitWdmGetPhysicalDevice(DeviceInit);