How to get TI-Link Signal on ttySx

[Jonas Schneider]

Heya,

I'm testing around a bit with the TI-Link stuff.
I've set up my TI-83 (in fact, TI-82 STATS) with a custom-made serial
adapter (COM1 or /dev/ttyS0).
So far I've got a working TiLP on Windows and Ubuntu, everything runs
well.
But, when I try to capture the live hex stream on the console, I get
no input/output whatsoever.
Of course, while TiLP is running, you can't view the stream, because
the port gets locked.
But if TilP isn't running, and I do
# hexdump /dev/ttyS0
I get just no output if I try to send a file from the calculator the
computer. Same for Hyperterm/PuTTY on windows.

Has someone already got this working or can give me a hint?

Greets
Jonas