EM7455B missing /dev/ttyUSB

[jyijyi]

see if this helps:

EM7455 Linux Issues

I found the IDs by googling for DW5811e, guessing that the bood PID is one less than the application PID. Usually is. Most USB serial functions are very simple: One bulk in and one bulk out endpoint is all you need. There is some control signal logic as well, but that’s mostly optional. This makes the drivers simple and in practice interchangeable. The main difference is in the descriptor matching. I often abuse the “option” driver for this kind of one-shot temporary thing because it does …