[mythtv-users] VIDIOCMCAPTURE0: Device or resource busy

[Xaero]

wow,
I didn't think the problem could be solved.

I'm using kernel 2.6.26 but I've had the same issue with 2.6.25.
I'll try soon 2.6.24

thanks :D

2008/8/23 Chris Picton <chrisp at tangent.co.za>

> Final follow-up
>
> Problem solved.
>
> First, this does appear to be a kernel issue with bttv and v4l1:
> http://kerneltrap.org/mailarchive/linux-kernel/2008/8/4/2806884
>
> Using kernel version 2.6.24 works fine.
>
> In addition, patching mythtv to use v4l2 for bttv cards allows it to
> work with kernels >= 2.6.25.  This also reduced my CPU time while
> recording from 40% to 25% (Sempron 2400+)
>
>
> 932c932
> <         if (driver == "cx8800" || driver == "go7007" || driver ==
> "em28xx")
> ---
> >         if (driver == "cx8800" || driver == "go7007" || driver ==
> "em28xx" || driver == "bttv")
>
> I have not yet experienced any channel changing errors as documented
> here:
> http://www.mythtv.org/pipermail/mythtv-dev/2005-February/031229.html
>
> On Sat, 2008-08-23 at 20:18 +0200, Chris Picton wrote:
> > On Sat, 2008-08-23 at 09:30 +0200, Chris Picton wrote:
> > > On Sat, 2008-08-23 at 00:20 +0200, Xaero wrote:
> > > > same problem
> > > > see
> > > > http://mythtv.org/pipermail/mythtv-users/2008-August/231432.html
> > > >
> > > > which card are you using?
> > >
> > > I have a Leadtek TV2000XP RM
> > >
> > > I will try with an older kernel (currently I am using 2.6.26, but my
> > > previous installation was 2.6.22)
> > Results of the above test:
> >
> > I tried mythtv 0.20.2, but same issue
> >
> > I then tried kernel 2.6.19.7, and LiveTV works fine.
> >
> > So I assume this is a kernel incompatibility.
>
>
>
> >
> > Xaero - what kernel version are you using?
> >
> >
> > > >
> > > > 2008/8/22 Chris Picton <chrisp at tangent.co.za>
> > > > I am getting
> > > >         the
> > > >         following error when trying to watch live tv:
> > > >
> > > >         2008-08-22 20:52:26.096 TVRec(1): Changing from None to
> > > >         WatchingLiveTV
> > > >         2008-08-22 20:52:26.102 TVRec(1): HW Tuner: 1->1
> > > >         2008-08-22 20:52:27.251 AutoExpire: CalcParams(): Max
> required
> > > >         Free
> > > >         Space: 2.0 GB w/freq: 15 min
> > > >         VIDIOCMCAPTUREi0: Device or resource busy
> > > >         VIDIOCMCAPTUREi1: Device or resource busy
> > > >         VIDIOCMCAPTURE0: Device or resource busy
> > > >         VIDIOCMCAPTURE1: Device or resource busy
> > > >         (last two lines continually repeated)
> > > >
> > > >         I am reading from a bttv card, using the 'Television' input.
> > > >
> >
> > ---------------------+-----------------------------------
> >         Chris Picton | Key ID: 9D28A988 (wwwkeys.pgp.net)
> >   Technical Director | PGP Key Fingerprint:
> >      Tangent Systems | 2B46 29EA D530 79EC D9EA
> >         011 447 8096 | 3ED0 229D 6DD6 9D28 A988
> > chrisp at tangent.co.za | www.tangent.co.za/keys/chrisp.asc
> > ---------------------+-----------------------------------
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> ---------------------+-----------------------------------
>        Chris Picton | Key ID: 9D28A988 (wwwkeys.pgp.net)
>  Technical Director | PGP Key Fingerprint:
>     Tangent Systems | 2B46 29EA D530 79EC D9EA
>        011 447 8096 | 3ED0 229D 6DD6 9D28 A988
> chrisp at tangent.co.za | www.tangent.co.za/keys/chrisp.asc
> ---------------------+-----------------------------------
>
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