[ltp] IR on TP (600 specifically)

[Dirk Husemann]

Leif,

>>>>> "LJ" == Leif Jonsson <Leif.von.Jonsson@era-t.ericsson.se> writes:

    LJ> Hello all!
    LJ> Has anyone had any luck getting IR to work on any thinkpad?
    LJ> I specifically have a 600 and I seem to be able to talk
    LJ> to the ir-chip in some basic way (irmanager seems to start
    LJ> it) but irattach doesnt seem to get any valid connection,
    LJ> because when I try the 'dip' trick in the HOWTO, it just
    LJ> locks up.

What I did is the following (no guarantee though)

    (1) Got a fresh copy of the " TP General - Utility Features for DOS"
        disk (via http://www.pc.ibm.com/support/ and then click through to
        ThinkPad support, downloadable files, and then Utility---sorry
        can't post the URL as it seems to be personalized).

    (2) Created a bootable disk with the extracted utility SW on it. Boot
        it.

    (3) Enable the IR port and the serial port:

        ps2 sera address 1
        ps2 ir address 2
        ps2 sera enable
        ps2 ir enable

    (4) Reboot to linux. You should see something like the following in the 
        boot messages

        ttyS00 at 0x03f8 (irq = 4) is a 16550A
        ttyS01 at 0x02f8 (irq = 3) is a 16550A

        The first one is the serial port, the second one the IR.

    (5) Configure your linux kernel (e.g., I'm running 2.2.11) to include
        the IR stuff (I enabled/moduled everything there). 

    (6) Reboot with the new kernel.

    (7) create the /dev/irnine device.

    (8) Update /etc/conf.modules to include

        alias tty-ldisc-11 irtty
        alias char-major-60 ircomm_tty

That did the trick for me. I'm now using the IR port to talk to my Palm V,
eh, WorkPad and synchronize with it (using PilotMgr and malsync for
AvantGo). Quite nice 8=)

        Good luck and have fun,
        Dirk


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