IoWMIHandleToInstanceName

NTSTATUS __stdcall IoWMIHandleToInstanceName(PVOID DataBlockObject, PVOID FileHandle, _UNICODE_STRING *InstanceName){
  NTSTATUS FilePDO; 
  struct _UNICODE_STRING *v6; 
  struct _DMA_ADAPTER *v7; 
  PDEVICE_OBJECT DeviceObject; 
  DeviceObject = 0i64;
  FilePDO = WmipGetFilePDO(FileHandle, 0, &DeviceObject);
  if( FilePDO >= 0 )
  {
    v6 = InstanceName;
    v7 = (struct _DMA_ADAPTER *)DeviceObject;
    FilePDO = IoWMIDeviceObjectToInstanceName(DataBlockObject, DeviceObject, v6);
    if( FilePDO >= 0 )
      FilePDO = 0;
    if( v7 )
      HalPutDmaAdapter(v7);
  }
  return FilePDO;
}

Referenced by: