So, on USB 2 OTG, in order for OTG support to be enabled, the USB port and the USB controller had to be built for it. This hardware distinction is made very deliberately on devices that carry it. For example, Raspberry Pi devices are marketed with USB OTG devices as being a separate feature from the other USB ports.
On Rock Pi's this feature is either hard coded or has a physical toggle to switch from standard USB to USB OTG.
It is very easy to find devices that support USB 2 OTG, but I find it harder to find devices that support USB 3 OTG/Dual-Role. I'm beginning to wonder if Dual Role comes with (and is assumed to be on) all USB 3 ports or that no one other than Smart Phone manufacturers make them.
I seem to be struggling to find this kind of hardware, and I am unsure as to why I can't find any
Articles like this one on Microsoft, give me the impression that it is a software configuration.
So is USB 3 Dual-Role a software configuration or hardware configuration or both?
