Steps to load lirc?

whygentoo · Posted: Fri Aug 06, 2004 9:32 pm Post subject: Steps to load lirc?

I have read several post about lirc. But I´m not sure about the way to load lirc. I have compiled the kernel (2.4.25-gentoo-r1) with serial as a module, as often advised. I know my homebrew serialreciver and remote works, as I have been able to run it with winlirc.

Modprobe lirc_serial loads lirc_serial and lirc-dev. It looks good, dmesg gives the output:
lirc_dev: IR Remote Control driver registered, at major 61
lirc_serial: autodetected active low reciver
lirc_dev: lirc_register_plugin: sample_rate: 0

But I have not been able to get irrecord, irw or mode2 to work. Some posts talks about:
1) load serial/8250
2) setserial /dev/ttyS0 uart none
3) modprobe lirc_serial

Do I have to use setserial when serial is built as a module? What is the proper way to load lirc?

detroitx · n00b Joined: 22 Apr 2004 Posts: 5

settings for lirc (com1) in
/etc/modules.d/lirc

whygentoo · Posted: Thu Aug 12, 2004 7:35 am Post subject:

Solved solved solved!

It turned out that the supply voltage was to low from the serial interface on the Via EPIA 5000 board. You who are familiar with the serial interface know that it´s possible to get a DC supply voltage around 8-12 volt by connecting to the serial interface pin 5 and 7, thats GND (Signal ground) and RTS (Request to send).

I activated the serial interface by modprobe lirc_serial and the messauring the ouput voltage. I got a 5 volt supply from my Via Epia 5000 board. I then switched board to my VIA ME6000 board. I did a modprobe lirc_serial an messaured the output voltage to my homebrew reciever. I got a 7.3 volt supply. And LIRC was up and running whitout any problem. I don´t know if it´s possble to recomstruct the serial reciver or if a parallell reciver would work with the Epia 5000 board. That is still to investigate. But it seems to me that the supply voltage is to low from the Via Epia 5000 serial interface. This is similar with the problem that some time happend to laptops: that the supply voltage is to low to operate the serial reciver, despite that it only consumes a few milliwatts.

bkunlimited · l33t Joined: 18 Jun 2004 Posts: 672

@detroitx

I followd your steps above. but anyway when trying to modprobe lirc_serial i get the following error message:

bkunlimited · l33t Joined: 18 Jun 2004 Posts: 672

ah i solved it by myself. sometimes it really helps to read the dmesg output :oops:

this solved the problem:

b0fh · Guru Joined: 16 Jun 2003 Posts: 426

Any idea where to put that setserial stuff when I want to load lirc-serial automatically?

bkunlimited · l33t Joined: 18 Jun 2004 Posts: 672

hmm... i tried 2 different ways:

1) calling setserial command out of /etc/init.d/serial which is in runlevel "boot" -> no effect
2) calling setserial and modprobe lirc_serial from /etc/init.d/lircd before lirc gets started.
i also failed in second case... i have no idea why

bkunlimited · l33t Joined: 18 Jun 2004 Posts: 672

maybe anyone has an idea where to put it??? :?:

mrnegitoro · Posted: Tue Aug 24, 2004 5:53 pm Post subject:

No word on where to put this code still?

bkunlimited · l33t Joined: 18 Jun 2004 Posts: 672

i have a very strange problem: i can insert the module without any problems. but i can't get irw, mode2 or irxevent to work. any ideas why??

mrnegitoro · Posted: Thu Sep 02, 2004 3:50 pm Post subject:

Is your lircd running?

Mine is located in /usr/local/sbin/

mrnegitoro · Posted: Thu Sep 02, 2004 3:59 pm Post subject:

Ok, I'm sure it is. Maybe it's a permissions problem? I like to state the obvious

bkunlimited · l33t Joined: 18 Jun 2004 Posts: 672

my lircd is running. it is located in /usr/sbin.
i don't think it is a permissions problem because no such error messages are reported. i created /dev/lirc with the following command:

bkunlimited · l33t Joined: 18 Jun 2004 Posts: 672

i tried the same configuration on a suse 9.1. it also did not work. but i got it running w/o problems with winlirc 0.6.5. so my question is: did i forget to load something on my gentoo?

mrnegitoro · Posted: Thu Sep 02, 2004 10:58 pm Post subject:

I installed lirc using a CVS version http://www.lirc.org/cvs.html. The CVS version created the Kernel modules, I didn't have to use a Kernel patch or anything like that. Excuse me if you used the CVS too, I didn't re-read this entire post. I'm looking for the post that turned me on to using the CVS when I find it I will post a link here... (stupid me didn't bookmark it).

mrnegitoro · Posted: Thu Sep 02, 2004 11:00 pm Post subject:

Here it is...

https://forums.gentoo.org/viewtopic.php?p=1448997

bkunlimited · l33t Joined: 18 Jun 2004 Posts: 672

unfortunately this was not the reason. i tried the cvs version as you suggested but the result was the same. the kernel module was built properly and i was able to load it and start the lirc daemon. but no application (either irw, or irxevent or mode2) showed any output

i'm lost... what could it be?