Well, that post of mine you linked to is just over a year old and that was the last time I messed with IrDA on the empeg so I'm not really up to speed on this. Over the past year, I have learned a couple tidbits that might help...

First problem is that the regular hijack kernel doesn't have IrDA or module support (no real demand for either). Right now, I'm running a kernel that yn0t_ compiled for me... it's Hijack v300 + audio overlay patch + IrDA.

I seem to have lost irattach along the way so I just d/l'd and recompiled it. The Makefile in irda-utils-0.9.15 doesn't look like it wants to cooperate with cross-compiling, so I just CD'd into irattach and ran make there... seemed to work ok. I tried the same for irdadump, but it complains that I don't have glib.h. I ran a find for it on the linux box I'm compiling on and it doesn't have it so I'm not sure what's up with that... mind posting a copy of your irdadump binary?

Now on the empeg, I get this:

sh-2.03# cat /proc/tty/drivers

pty_slave            /dev/ttyp       3   0-255 pty:slave

pty_master           /dev/pty        2   0-255 pty:master

serial               /dev/cua        5   64-66 serial:callout

serial               /dev/ttyS       4   64-66 serial

/dev/console         /dev/console    5       1 system:console

/dev/tty             /dev/tty        5       0 system:/dev/tty

ircomm               /dev/ircomm   161    0-31 serial

So I made the following device:

crw-r--r--    1 0        0        161,   0 Jan 30 00:28 /dev/ircomm0

Now when I run

irattach /dev/ttyS2 -s

it doesn't give any errors.

However, I still don't know how to use it... I open a terminal window on my PC to COM3 (my IrCOMM port using my PC's IR dongle). Pointing at the empeg, I then run

cat /dev/ircomm0

and type stuff on the PC... nothing shows up. I tried the other way 'round too, but nothing shows up. On the PC, I don't know what baud rate I should use, but if I was anywhere within an order of magnitude of the right baud rate, I should get garbage, not nothing.

I don't know how else to test IrCOMM... I have a Palm III, but what do I do on the Palm to make something show up in the terminal window that's connected to the IrCOMM port?