(Likely affects everyone who tries to use it)
Yes, Virginia, some devices still have a serial port...
aneurin% cu -h -l cuau0
can't open log file /var/log/aculog.
(Tap tap tappity-tap) => nothing echoed, but a response is received e.g. when typing "MDL<CR>":
MDL,UBCD396XT<CR> (It's a Uniden UBCD396XT trunking radio scanner)
Type "POF" (for power off): no echo, but responds with "POF,OK" and *click* :-)
The serial port works because I can control something plugged into it, but not having anything echoed back, despite the "-h" flag, makes life a bit difficult.
Hardly a show-stopper I know, but it would be nice if something worked as documented. No, I don't have source code, as the disk is too small, otherwise I'd fix it myself and submit a patch.