Either @jcasman or I will need to ask someone at Ricoh if it’s possible to use the plug-in to stream over a USB cable. Currently, we only have examples to stream from the plug-in using Ethernet or Wi-Fi.
The Ricoh camera app can stream over USB, but it’s using a different code base.
Update: 2018/09/18: Does not look possible to stream dual-fisheye over USB using the plug-in. See this: