https://bugs.winehq.org/show_bug.cgi?id=43652
--- Comment #2 from Adam Szmigin smidge@xsco.net --- The FIXME message is from dlls/mmdevapi/devenum.c, in the MMDevice_Activate function:
.. else if (IsEqualIID(riid, &IID_IDeviceTopology)) { FIXME("IID_IDeviceTopology unsupported\n"); } ..
Here is the DeviceTopology API docs: https://msdn.microsoft.com/en-us/library/windows/desktop/dd370809(v=vs.85).a...