Re: two serial devices.

[Nick M. <kno...@gm...>]

On 02/05/07, Rick Sterling <ric...@ho...> wrote:
>
> hi.
>
> i am trying to get two serial devices working with lirc.  one device is on
> ttyS0 and is an ir receiver.  the other is on ttyS1 and is an ir
> transmitter.  i have the first device working but cannot figure out how to
> load the lirc_serial module a second time to support the emitter on ttyS0.
> i apollogise in advance as part of my problem may be due to my ignorance of
> the modprobe.d interface in my linux distro ubuntu edgy eft.

In the past when controlling 2 different serial devices with the
lirc_serial kernel module you had to build a second instance of the
modules with non-conflicting name and major/minor device numbers.
Please see http://losdos.dyndns.org:8080/public/mythtv-info/MythTV_DISH_IR_LED_TX_via_Modified_LIRC.html
for more information.

Do you have a lirc_serial_2 kernel module supplied with your distro?
If so, you may already have all you need to get this working. I
noticed a small issue with your modprobe options for lirc_serial_2 -
the ignore-install was pointing to lirc_serial instead of
lirc_serial_2:

If you have a soldering iron to hand, it is possible to run both the
receiver and transmitter off a single serial port, which requires only
a single instance of LIRC running and simplifies things a lot.

Nick
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