[ltp] Linux IRDA drivers for the X30

[Tino Keitel]

On Thu, Jul 03, 2003 at 18:02:00 +0200, Karl Trygve Kalleberg wrote:
> 
> 
> On Mon, 30 Jun 2003, Tino Keitel wrote:
> 
> > On Sun, Jun 29, 2003 at 17:37:06 +0200, Karl Trygve Kalleberg wrote:
> > > 
> > > Hi.
> > > 
> > > I have an X30, the 2672, manufactured 03/03. The kernel irda drivers
> > > (2.4.20) do not appear to detect the irda hardware at loading time,
> > > nor have I had any luck with irda-utils-0.9.15's findchip.
> > > 
> > > I noticed somebody mentioned that the irda subsystem may need to be
> > > enabled first, and that the tpctl can do this, but afact, this only
> > > works with the superio chip, which is not present in my model.
> > > 
> > > Any pointers would be great.
> > > 
> > > Karl T
> > 
> > You should be able to use the IrDA port in SIR (Serial InfraRed, max.
> > 115kbit/s) mode using the IrTTY or IrPort kernel driver, like described
> > at <http://www-hft.ee.tu-berlin.de/~strauman/irda-tiny-howto.html>. A
> > few weeks ago, I tried to use the FIR (max. 4 mbit/s) mode on my A30. I
> > was able to load the nsc-ircc module after removing some checks in the
> > hardware detection code. However, I could not test the IrDA function,
> > but I will try to do that this week with my girlfrieds ThinkPad as a
> > second IrDA device and let you know about the results and code changes.
> 
> Turns out that if the BIOS is set to enable the non-existing serial port,
> the irda-port is not configured correctly, and thus linux doesn't see it
> at boot.
> 
> Trying to enable it later with setpnp also fails. 

If the kernel does not find a serial port at the IrDA hardware
addresses, then modprobe nsc-ircc should work.

-- 
tino.keitel@innominate.com
dipl.-inf.                        Innominate Security Technologies AG
software engineer                                   enabling security
tel: +49.30.6392-3308                      http://www.innominate.com/