Justin Cormack <[EMAIL PROTECTED]> writes:
> >
> > Hi
> >
> > I've seen in the HOWTO that it is possible to use more than one ir device
> > at the same time, I'm having some trouble with this. I'm using
> > linux-2.2.12+irda3 and irda-utils-0.9.4. I have a tekram dongle and a
> > built-in ir-port on a Dell Latitude (some years old). Both devices work
> > well one at a time but when I try to do 'irattach' on a second device the
> > message 'tcsetaddr: Input/output error' shows in the log (right after
> > 'serial connection established').
> >
> > any ideas ?
>
> I have had this sometimes too, sometimes if I don't have
> all the modules insmod'd, sometimes rmmoding them and
> putting them back fixes it.
>
> However, my girbil dongle arrived today, and despite
> it all saying it was running fine, I couldnt get the
> girbil and the built in IR port to see each other
> in discovery.
They will not see each other if you run them on the same machine, since
they will initiate discovery exactly at the same time. You should however
be able to use them against two other laptops. I can run a dongle, builtin
IrDA port and a IrDA pcmcia card at the same time with three other IrDA
devices without any problems.
You should notice that if the devices can interfere with each other then it
might be difficult to obtain a connection, since a device is not allowed to
transmit if the media is busy. I sometimes have to put a book between them
;-)
-- Dag
--
/ Dag Brattli | The Linux-IrDA Project /
// University of Tromsoe, Norway | Infrared communication for Linux //
/// http://www.cs.uit.no/~dagb | http://www.cs.uit.no/linux-irda/ ///
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