Re: irda on the ipaq shell

On Tue, 3 Feb 2004 13:54:06 +1100
Marcus Brown <marcusbrutus_at_internode.on.net> wrote:

> I'd like to be able to have something similar to irdadump as a
> sanity check. My old method of testing serial mice didn't work
> (ie. cat /dev/ttyS1) with a "cat: /dev/ttyS1: Input/output error".
This means either a) somebody already uses ttyS1 (try as root:
fuser -v /dev/ttyS1), or your computer simply has no ttyS1 (AKA COM2).
What kind of IrDA dongle are you using? A real serial dongle? Or some
USB gadget? If it is in a laptop perhaps it uses some other kind of
serial connection... try all serial ports, look in dmesg file which
serial ports there are, or in /dev/tts/*.

> Any easy way of passively watching the comm in tandem with minicom?
> Do I need to initiate anything in minicom?
If you have a hand camera, you can try to look through the visor at the
IR transmitter. With my Sony Handicam I have easily debugged such
problems in the past - only the data sequence has to be relatively long,
e.g. send some file with minicom and you should see the IR diode bright.
Same from PDA side - run linux to start booting and look through the
visor at it's IR diode - it should flash.

--
Greetings,
   Andrew