Somnium VR1 - USB devices

- Ports 18, 19 are composite devices with CDC control and video end points
- Valve VR radio explains how SteamVR detects base station without Windows Bluetooth
  - Valve LHR are base station HID
- COM9 is "Somnium VR1 VCP Data"

- the first 6 devices have Valve ProductID
- two next devices are Ultraleap
- final 15 devices are Somnium
  - red dots by final 3 suggest Windows unhappy about enumeration,
    but MR cameras work