Re: VS: videodevX/bttv2 modprobe fails (kernel 2.4.13)

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cat /proc/devices

You must have v4l compiled into your kernel? Make it a module and
recompile, or don't include it at all if you want to go all-V4L2.

Bill.


Joni Kähärä wrote:
> 
> I did that. I forgot to mention that I did "rmmod bttv" (and it's friends
> tvaudio
> and tuner). Actually my goal is to get Matrox Meteor-2 working too. We use
> both
> Matrox and Hauppauge hardware, depending on application. .. So even if there
> are
> no modules loaded, "modprobe videodevX" fails, giving that same rap about
> it's
> unability to get major 81. How could I find out if someone has taken that
> major
> 81 already (who took it)?
> 
> > Do "modprobe bttv2" first.
> >
> > modprobe bttv will load videodev which will take 81. videodev won't load
> > bttv2 so it needs videodevX. videodevX needs 81 so it won't load.
> > modprobe bttv2 will load videodevX. videodevX will take 81, but
> > videodevX will allow bttv to load, so no problem.
> >
> > Bill.
> >
> >
> > Joni Kähärä wrote:
> > >
> > > Good day everybody. I am stuck. Compiled latest videodevX and
> > > latest bttv2. Did "make install" on both, they put modules where they
> > > belong, in "/lib/modules/2.4.13/kernel/drivers/media/video". When I say
> > > "modprobe bttv" it works just fine. But "modprobe bttv2" fails, saying:
> > >
> > > Warning: loading
> > /lib/modules/2.4.13/kernel/drivers/media/video/videodevX.o
> > > will taint the kernel: no license
> > > Unable to get major 81 for v4l1/2
> > > /lib/modules/2.4.13/kernel/drivers/media/video/videodevX.o: init_module:
> > > Input/output error
> > > Hint: insmod errors can be caused by incorrect module
> > parameters, including
> > > invalid IO or IRQ parameters
> > > /lib/modules/2.4.13/kernel/drivers/media/video/videodevX.o: insmod
> > > /lib/modules/2.4.13/kernel/drivers/media/video/videodevX.o failed
> > > /lib/modules/2.4.13/kernel/drivers/media/video/videodevX.o: insmod bttv2
> > > failed
> > >
> > > That "Unable to get major 81 for v4l1/2" may be the key to my problem?
> > >
> > > /var/log/messages reports:
> > >
> > > Oct 30 14:58:54 ws15-132 kernel: Video for Linux One (2.2.16).
> > Major device:
> > > 81
> > > Oct 30 14:58:54 ws15-132 kernel: Unable to get major 81 for v4l1/2
> > >
> > > That "Video for Linux One (2.2.16)" looks suspicious to me, as
> > I am trying
> > > to load bttv2. What should I put into /etc/modules.conf? I have
> > Hauppauge
> > > Impact capture board (it's a Bt878A).
> > >
> > > In the kernel I have Video4Linux compiled as a module, and no specific
> > > driver
> > > (as the videodevX README told me to do?). Bttv driver is compiled as a
> > > module.
> > > Also, generic sound support and Bt878 mixer stuff are modules (is this O
> > > K?).
> > > (I put that sound stuff because it complained about btaudio.o
> > and something
> > > else).
> > >
> > > During "make install" videodevX complains about videodev2.o missing.
> > > What am I doing wrong?
> > >
> 
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