On Tue, Dec 20, 2022 at 01:08:59PM +0000, dima.pasechnik@xxxxxxxxxxx wrote: > On Mon, Dec 19, 2022 at 06:36:47PM -0500, Alan Stern wrote: > > > > It might help if you post the output of "lsusb -v" for this device. > Please see attached; I also attached the output for an older version of > this board (V1). The one we talk about is V2. Both versions have the > same VID, and, weirdly, the same PID (internally they aren't binary > compatible, even) That's horrible, someone should talk to the vendor here and get them to at least bump the device id. Anyway, I don't see a "serial" device here, just use the cdc-acm driver and all should be ok, right? Is there any missing functionality that you feel is required that only the usb-serial api can provide? thanks, greg k-h
