Thank you for the reply. That might help a lot.Looking at the WIKI pages for the product, it enumerates as COM ports. The one providing the AT interface may well be a generic CDC-style thing.
It may well be that in that instance, you don't need a driver for Circle, as it will already be supported.
Having played with various USB devices with Circle, my suggestion would be to connect the board to a regular device running "normal" linux, and see what lsusb tells you about it; that's usually a good starting point.
I have seen circle already has built in support for cdc over usb. Out of interest, how difficult do you think it is reverse engineer that by reading the documentation and looking at the packets with a usb traffic analyser?
Statistics: Posted by Onekx_ — Sun Aug 17, 2025 1:07 pm