On devices with multiple comports, the program exits with an EOFError

[eric-wieser]

The background process does not have an stdin, so when you call raw_input() to choose a com port, the process crashes

[mitchgu]

Can you think of a good solution that still lets the user choose? Right now I'm considering just quitting and asking the user to specify a port in config.yaml or unplug multiple devices.

[eric-wieser]

Unplugging devices isn't enough, unfortunately, since on our HP stream 7 there seems to be an internal hardware com port. A little overkill, but a tkinter window? Or just look for a port that responds to teensy packets

[mitchgu]

I've actually been considering some tkinter windows that continuously display rtt times or the timeout or the syncedsketch ratio or throughput. Unfortunately I'm not that familar with it so it'd probably take some time to get it working right with the multiprocessing.

I do like your second idea though. Could just try establish() on all the ports found