Kernel 2.6.11, PVR 250, and LIRC

Obsidian_MH · Posted: Thu Apr 28, 2005 2:23 am Post subject: Kernel 2.6.11, PVR 250, and LIRC

I've got my HTPC running with MythTV and a Hauppauge PVR250. Everything seems to be working wonderfully, with the exception of lirc.

LIRC will start, but I can't shut it back down (/etc/init.d/lircd stop). Restart also fails. I don't remember where the error messages are for this, as it only returns the [!!]. Additionally, I only have a /dev/lircd. I have no /dev/lirc0-9 or /dev/lirc

I've been searching the forums, but most of the problems similar seem to be different enough that they don't relate to my issue.

I followed the MythTV guide at gentoo-wiki completely... so... yay for me?
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bkunlimited · l33t Joined: 18 Jun 2004 Posts: 672

try to start lirc by hands, not with the init script. then you will see the error messages. Probably it will complain about non existing devices or about wrong permissions. i had the same problem at home. when i'm back at home i will check which devices i have and paste it here

trilexx · Posted: Thu Apr 28, 2005 10:52 am Post subject:

Since you got everything running fine, you may be able to answer this question: Is it necessary to add bt848 support to the kernel/compile as a module beside ivtv for getting the pvr-250 running?

thanks in advance
trilexx
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TheBigBug · Posted: Thu Apr 28, 2005 2:16 pm Post subject:

Does anyone have a solution jet? I'm having exactly the same problem.

Thanks in advance!
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GBob · Posted: Thu Apr 28, 2005 2:22 pm Post subject:

Try adding:

Obsidian_MH · Posted: Thu Apr 28, 2005 7:49 pm Post subject:

The stuff is already in /etc/conf.d/lircd... Doesn't make any difference. -_-

*sighs*
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GBob · Posted: Thu Apr 28, 2005 7:54 pm Post subject:

And I assume you've used:
modprobe lirc_i2c

or whatever it is to load the lirc module, correct? Tried adding that to your modules autoload and rebooting? (force the module to unload and then reload it. Finally start lircd with the proper parameters.)

[Edit] changed lirc to lirc_i2c, my mistake.[/Edit]
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mean · Guru Joined: 25 Sep 2002 Posts: 313

I've ran into that yesterday
Basically there are some /dev/lirc files created that prevented the module to create /dev/lirc/0 in devfs

So i did a quick workaround :
in the lirc rc script unload the modules, remove /dev/lirc*, reload the module
Now /dev/lirc/0 is properly created

(+symlink /dev/lirc0 to /dev/lirc/0)

There is certainely a better way (tm) but it works for me.

trilexx · Posted: Fri Apr 29, 2005 7:23 am Post subject:

Obsidian_MH · Posted: Fri Apr 29, 2005 7:55 pm Post subject:

It works. finally.

I looked around my kernel config for all the modules that the guide told me to enable. I added them to /etc/modules.autoload.d/kernel-2.6 and reboot... everything works wonderfully, except a minor MythTV issue now.
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TheBigBug · Posted: Sat Apr 30, 2005 2:50 pm Post subject:

Obsidian_MH, I still have one question left. Which guide did you use???

Thnx, Bug
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trilexx · Posted: Tue May 03, 2005 11:43 am Post subject:

hmm...

it can't get it working using a symlink. could tell us how you finally got it working?
I have even tried a CVS version of lirc, which didnt work either...

trilexx
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trilexx · Posted: Wed May 04, 2005 6:38 am Post subject:

I re-emerged system the other day since experimenting with lirc accidentally broke some things. Etc-update all config files and after that I emerged lirc from portage with LIRC_OPTS="..." emerge lirc. Finally all worked! The IR Receiver has been detected and irw receives all the signals sent by the hauppauge remote.

As soon as I am back at home I will post the modules I have loaded. But I can tell there are no other special ones as the ivtv module.
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generalgherk · n00b Joined: 22 May 2003 Posts: 58

I am totally confused about lirc now. I too am making a myth tv box using the 2.6.11-gentoo-r6 kernel. I got that with emerge gentoo-sources (gentoo-dev-sources doesn't exist anymore).

http://gentoo-wiki.com/HARDWARE_Setup_MythTV#Getting_Started says:

"Note: As of December 2004 and Kernel 2.6.9, the LIRC patch is no longer included in either the Gentoo or Love sources. What finally worked for me were the plain-old, unpatched, vanilla 2.6.9 sources (emerge development-sources)"

This indeed seems to be the case, the kernel options I'm used to seeing aren't there. I am using a 'homemade' receiver which I've had working in windows & gentoo before, do i need to enable anything further in the kernel? Like the post at the top of this thread, I too have a /dev/lircd device but no lirc0 etc. This appears when i do /etec/init.d/lirc start. If I try modprobe lirc_serial I get 'Error inserting lirc_serial (..............) Device or resource busy'.

I emerged lirc with no LIRC_OPTS but I do have
LIRCD_OPTS="-d /dev/lirc0"
in my /etc/conf.d/lircd

What am I missing?
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Chris W · Posted: Thu May 05, 2005 1:17 am Post subject:

jimhend~1 · Tux's lil' helper Joined: 20 Nov 2003 Posts: 89

hi , anyone know howto configure mythtv with native lirc support (ie ~/.mythtv/lircrc)
to work with buttons like page up and page down?
ive tried
begin
prog = mythtv
button = Replay/SkipBackward
# Use for backwards commercial skip
config = Page_Up
end
but to no avail

and also ctrl-q etc..?
tia

generalgherk · n00b Joined: 22 May 2003 Posts: 58

Did you compile myth with the lirc USE flag?
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generalgherk · n00b Joined: 22 May 2003 Posts: 58

Thx for suggestion Chris I'll try it.
Is anyone able to explain to me the setup with lirc now? If it has been removed from the kernel how can it be used without patching? Does emerging lirc install a kernel module itself?
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GBob · Posted: Thu May 05, 2005 12:59 pm Post subject:

Okay, so here's how I understanding it working.

Provided you've used genkernel atleast once (to build the kernel you are currently using) and you haven't clean out the kernel directory, when you emerge lirc, it uses the source files and such of your kernel to build the module. Thus, if you upgrade/rebuild your kernel then you need to re-emerge any packages depending on that source. From the gentoo-wiki:

generalgherk · n00b Joined: 22 May 2003 Posts: 58

I've never used genkernel, but I guess what you said answers me anyway. I couldn't understand how modules like lirc-serial had appeared when I never selected them in my kernel. How can I see a list of all the modules available to be modprobed on my system?
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GBob · Posted: Thu May 05, 2005 1:58 pm Post subject:

Typically I look for them. I know it sounds somewhat simple, but it seems to work (that and watching while emerge installs for anything that installs into the /lib/modules directory.)

Try:

generalgherk · n00b Joined: 22 May 2003 Posts: 58

Ok the root of the problem was being unable to load lirc_serial due to the 'Device or resource busy' message. I was able to fix this by removing serial support from my kernel and rebooting. Once I did this I was able to modprobe lirc_serial and my device lirc0 appeared.
What I couldn't understand was where these modules came from without me having enabled them in the kernel but like you said they must be built when you emerge lirc.
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