Linux Infrared HOWTO
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3.6. Linux Terminal on Palm (Handspring Visor) via IR

by Chris Morris on Linux/IrDA list: In addidtion to using IR to hotsync my Handspring Visor I got my Handspring visor to work as a linux text terminal via infrared last night. My computer is a Dell Inspiron 3800 (BTW I wracked my brains for weeks trying to get IR to work under the 2.4.0 kernel. The whole problem was caused by Linux looking at the wrong IRQ for ttyS3 . Maybe the IR HOWTO should mention that at some point.). I am using Beam Sync for Visor V1.0b2 by Hacker Dude-san. N.N. and MTerm by Shigeyuki Seko ([email protected]). On the laptop I have IR set to SIR mode and COM 3 via BIOS. I have to set /dev/ttyS3 to IRQ3 via setserial /dev/ttyS3 irq 3 on boot up. After boot up I do a:

/sbin/modprobe irda
/sbin/modprobe irtty
/sbin/modprobe ircomm
/sbin/ircomm-tty
/usr/sbin/irattach /dev/ttyS3 -s

cat /proc/net/irda/discovery shows the visor as IrComm Now /etc/mgetty+fax/mgetty.conf has to have these options: port ttyS3 direct y speed 9600 , faster maybe possible but only 9600 worked for me so far toggle-dtr n Then in /etc/inittab: palm:235:respawn: /sbin/mgetty ircomm0 After all of this I can start MTerm, issue a '/sbin/init q' then send a few <CR> from the Visor and I get a text termianl login. While composing this email I found a previously undiscovered website that seems most helpful: http://abgruen.de/palm/palm-ppp-mini.txt

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