[mythtv-users] LIRC: Beware of brain-dead packagers! (was: Lirc problems w/PVR-2

Mon Mar 15 16:24:59 EST 2004

Hi John,

To tell you the truth, I'm not entirely certain what causes the ivtv
kernel module to be loaded.  I suspect that mythbackend is starting it,
but I have not personally confirmed it.  This detail is never made clear
from Jarod's document, and none of the changes to modules.conf in the ivtv
section actually cause the module to be loaded.  All I know is that after
completing the entire instructions, ivtv loads when my system is starting
up.

You can load ivtv manually by using modprobe, as mentioned in the 
document.  If you follow the instructions and ivtv still isn't loading, 
you can try adding a line to /etc/rc.sysinit to modprobe ivtv.

Aaron

On Mon, 15 Mar 2004, John Minor wrote:

> Alright - I think that might be the problem - now how do I solve it?  Jarod 
> was right about the pre1 issue.  After "rpm -qa |grep lirc", I get only the 
> rpms that I installed, all the newest.
> 
> As far as the ivtv issue, I don't know what is going on.  Aaron, how did you 
> get the ivtv kernel drivers to load properly before lirc?  I followed 
> Jarod's guide if editing my modules.conf - here it is entirely:
> 
> path[toplevel]=/lib/modules/`uname -r`/updates
> # default path
> path[toplevel]=/lib/modules/`uname -r`
> 
> alias char-major-61 lirc_i2c
> 
> alias eth0 tulip
> alias char-major-81 bttv
> alias usb-controller usb-uhci
> alias ieee1394-controller ohci1394
> 
> # ivtv modules setup
> alias char-major-81 videodev
> alias char-major-81-0 ivtv
> options ivtv ivtv_debug=1 mpg_buffers=90
> options tuner type=2 # NTSC tuner
> options msp3400 once=1 simple=1
> add below ivtv msp3400 saa7115 tuner
> add above ivtv lirc_dev lirc_i2c
> 
> # alias char-major-61 lirc_i2c
> # alias char-major-81 bttv
> 
> # alias sound-slot-0 audigy
> # post-install sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -L 
>  >/dev/null 2>&1 || :
> # pre-remove sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -S >/dev/null 
> 2>&1 || :
> 
> alias char-major-195 nvidia
> 
> # --- BEGIN: Generated by ALSACONF, do not edit. ---
> # --- ALSACONF verion 1.0.3 ---
> alias char-major-116 snd
> alias char-major-14 soundcore
> alias sound-service-0-0 snd-mixer-oss
> alias sound-service-0-1 snd-seq-oss
> alias sound-service-0-3 snd-pcm-oss
> alias sound-service-0-8 snd-seq-oss
> alias sound-service-0-12 snd-pcm-oss
> alias snd-card-0 snd-emu10k1
> alias sound-slot-0 snd-emu10k1
> # --- END: Generated by ALSACONF, do not edit. ---
> 
> 
> I tried swapping the location of the "alias char-major-61 lirc_i2c" and 
> "alias char-major-81 bttv" lines to down below the lirc stuff (where the 
> same lines are commented out above the video driver line), but starting irw 
> still causes lirc to stop.  I also tried moving the location of that line 
> just above the "add above ivtv lirc_dev lirc_i2c" line, but still no luck.  
> So, Aaron, how did you get the ivtv kernel drivers to load properly before 
> lirc?  Again, thanks for the help!
> 
> John
> 
> 
> 
> 
> ------------------
> 
> I found that this problem occurs if ivtv is not loaded.  lirc worked for
> me when I followed Jarod's instructions, but then, after rebooting, it no
> longer worked.  lircd quit as soon as I launched irw.  I spent hours
> trying to figure this out.  The solution is to make sure that ivtv is also
> loaded.  The ivtv kernel module must be loaded first--it is needed to find
> the IR device.
> 
> Another way to confirm that the device is not found is by cat'ing=20
> /dev/lirc.  If it says something like "no such device", then that's=20
> exactly what the problem is.
> 
> Aaron
> 
> On Sun, 14 Mar 2004, Jarod C. Wilson wrote:
> 
> >On Mar 14, 2004, at 21:46, John wrote:
> >=20
> > > Well, it looks like this issue isn=92t completely resolved =96 I am sti=
> ll=20
> > > having problems getting LIRC to stay alive with my PVR-250=85 I=92ve be=
> en=20
> > > working on this problem for quite some time now, and I decided to=20
> > > start over completely.=A0 I reformatted and followed Jarod=92s guide.=
> =A0 I=20
> > > installed the lirc-0.7.0-25_cvs20040311 kernel module and build.=A0 It=
> =20
> > > worked great until I rebooted.
> >=20
> >Hm... Its working for me... But I haven't been rebooting much at all...
> >=20
> > > Before rebooting irw gave me feedback and everything when I pressed=20
> > > buttons on my remote.=A0 After rebooting, though, irw stops and the lir=
> c=20
> > > daemon stops as well.=A0 I tried running lirc =96n to watch the output =
> and=20
> > > it says:
> > >
> > > Lircd 0.7.0pre1[2518]: lircd(any)ready
> > > Lircd 0.7.0pre1[2518]: Accepted new client on /dev/lircd
> > > Lircd 0.7.0pre1[2518]: Could not open /dev/lirc
> > > Lircd 0.7.0pre1[2518]: Default_init(): No such device
> > > Lircd 0.7.0pre1[2518]: Caught signal
> > > Terminated
> > >
> > > That was really troubling
> >=20
> >Indeed... No clue why that's happening though... :-\
> >=20
> > > but here is the really strange part: Look at the version number.=A0 To=
> =20
> > > make sure I wasn=92t losing my mind, I tried lirc =96v and it indeed=20
> > > returned 0.7.0pre1
> > >
> > > How did the version revert to pre1?
> >=20
> >It really is pre3. That was covered a while back on the list. Something=
> =20
> >to do with the way the lirc code is in CVS, or something... Verify what=
> =20
> >you've got with "rpm -qa |grep lirc" and you shouldn't see any pre1=20
> >stuff, and you can verify by compiling current lirc cvs source=20
> >yourself.
> >=20
> > > Unfortunately, I didn=92t check the version before rebooting, but I=20
> > > assume that it was pre3, since that is what I installed =96 right?=A0 I=
> =20
> > > don=92t think it would have worked before the reboot without the versio=
> n=20
> > > being pre2 or the latest CVS version of pre3 that I installed (or at=20
> > > least that is what I intended to install).
> > >
> > > Any ideas?=A0 I=92ve been working on this problem for days now =96 and =
> I=20
> > > can=92t seem to resolve it.=A0 This is the closest I have some, seeing =
> as=20
> > > how it actually worked there for a minute!=A0 Before I cleanly installe=
> d=20
> > > the latest CVS version I would always get the same error.=A0 Maybe lirc=
> =20
> > > just hates me.=A0 Anyway, I=92d *really* appreciate some help!=A0 Thank=
> s so=20
> > > much in advance,
> >=20
> >I'm most of the way through another clean install myself on a dev box=20
> >(w/my PVR-350). I'll see if I can dig anything up...
> >=20
> >--=20
> >Jarod C. Wilson, RHCE
> >=20
> >Got a question? Read this first...
> >      http://catb.org/~esr/faqs/smart-questions.html
> >MythTV, Fedora Core & ATrpms documentation:
> >      http://wilsonet.com/mythtv/
> >MythTV Searchable Mailing List Archive
> >      http://www.gossamer-threads.com/archive/MythTV_C2/
> >=20
> 
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