// swenum.h

KSDDKAPI NTSTATUS KsGetBusEnumParentFDOFromChildPDO(
  [in]  PDEVICE_OBJECT DeviceObject,
  [out] PDEVICE_OBJECT *FunctionalDeviceObject
);
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Windows Driver Kit DDI reference (nf-swenum-ksgetbusenumparentfdofromchildpdo)

KsGetBusEnumParentFDOFromChildPDO function

Description

This function is intended for internal use only.

The KsGetBusEnumParentFDOFromChildPDO function retrieves the FDO of the parent of the given child PDO.

Parameters

`DeviceObject` [in]

Pointer to the child's PDO.

`FunctionalDeviceObject` [out]

Pointer to the device object to receive the parent's FDO.

Return value

Returns STATUS_SUCCESS if successful, or STATUS_INVALID_PARAMETER if DeviceObject does not contain a device extension, or if the device extension specified in DeviceObject is not that of a PDO.

View the official Windows Driver Kit DDI reference