IoGetRelatedDeviceObject

PDEVICE_OBJECT
    IoGetRelatedDeviceObject(
        IN PFILE_OBJECT  FileObject
        );

IoGetRelatedDeviceObject returns a pointer to the device object represented by the given file object.

Parameters

FileObject

Points to the file object representing the open device.

Return Value

IoGetRelatedDeviceObject returns a pointer to the device object.

Comments

The caller must be running at IRQL <= DISPATCH_LEVEL. Usually, callers of this routine are running at IRQL PASSIVE_LEVEL.

See Also

IoGetDeviceObjectPointer