[mythtv-users] VIDIOCMCAPTURE0: Device or resource busy

[Xaero]

which mythtv file I have to patch?

2008/8/24 Xaero <kknull0 at gmail.com>

> 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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>>
>>
>
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