[ltp] Linux IRDA drivers for the X30

Karl Trygve Kalleberg linux-thinkpad@linux-thinkpad.org
Thu, 3 Jul 2003 18:02:00 +0200 (MET DST)


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. 


Karl T