On Tue, Jul 11, 2000 at 10:19:10AM +0200, Ronan Waide wrote:
> Hi,
>
> I spent some time on Sunday getting my Compaq Armada M700 to talk to
> my SH888, eventually managing to get online for a while. Here's a
> rough summary of my experiences:
>
> 1. First things first: the machine boots up/loads the serial stuff
> with both ports set to IRQ 4. From my Windows setup I noticed that
> ttyS2, the IrDA port, should be IRQ 3. I'd like to know how Windows
> gets this right and Linux gets this wrong! setserial fixed this,
> obviously.
>
> 2. I used plain SIR. It's an smc-ircc chip, but it's not recognised,
> and I'm not smart enough to fix it :) If anyone wants to give me an
> analysis tool to probe the chip and determine the magic values...
>
> 3. I could not make the cable work, except for a brief moment that I'm
> sure I imagined. The pc would discover the phone just fine, but as
> soon as I kicked up an ircomm connection over it, it switched the
> bit rate to 115200 and the phone vanished from the discovery
> log. On the one occasion when it seemed to work, the phone
> reappeared after a few minutes, but I couldn't reproduce this.
>
> 4. Running via the IrDA port was very tricky. I had to reset the phone
> a few times; I had to rip out all the modules and reload them a few
> times. It seems as if the stack doesn't reset itself properly,
> particularly if anything goes wrong. On one occasion, I had to
> strip right back to removing the serial module and reloading /that/
> before it'd work.
>
> 5. The surprise I wasn't expecting! A day after all this, I ran up
> PilotManager, intending to sync my Palm III. As soon as I started
> PilotManager listening on the serial port (ttyS0, the hardline),
> the whole machine locked up solid! Cold boot time...
A colleague has exactly the same behavior with his PalmIII on a Toshiba
notebook.
>
> Hope this is of use to anyone developing IrDA.
>
> Cheers,
> Waider.
> --
> Ronan Waide, Technology Consultant
>
> StepStone, #102 Block 4, Harcourt Centre, Harcourt Rd, Dublin 2, Ireland
> Tel: +353 (0)1 2944077 Fax: +353 (0)1 2944078 http://www.stepstone.ie/
>
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