Thanks! I poked the people responsible for the USB stack; hope they'll chime in on the work that needs to be done.

Thank you. Any word from them yet?

As it says at the bottom of that page:

The Host Stack currently has the following notable limitations:

No HS (High Speed) support

No Hub support (currently only supports a single device)

So yes, it's a software limitation, the hardware is capable of talking to hubs just fine. I don't think ...

USB Hub is not supported by Host Driver now. Would you please tell us the application scenario? Which kind of device users want to connect through HUB? and how many? this will help us evaluate the priorities of this driver development


Has there been any progress on this?

We are trying to ...