This method gets the enumeration interface that is used to access available components that expose the IVIO_Device interface in the vehicle.
HRESULT IVIO_Vehicle::get_Devices ( IVIO_EnumDevices **ppDevices);
S_OK indicates that the vehicle’s device enumerator was retrieved successfully. E_POINTER indicates that the ppDevices pointer is invalid.
The calling process must release the returned interface and its resources.