Re: saa7134 - radio broken for v4l1 apps - was - Re: Problems with Pinnacle 310i (saa7134) and recent kernels

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Am Dienstag, den 15.09.2009, 18:39 +0200 schrieb Hans Verkuil:
> On Tuesday 15 September 2009 01:50:32 hermann pitton wrote:
> > Hi,
> > 
> > Am Montag, den 14.09.2009, 08:24 +0200 schrieb Hans Verkuil:
> > > On Monday 14 September 2009 00:42:16 hermann pitton wrote:
> > > > Hi,
> > > > 
> > > > Am Sonntag, den 13.09.2009, 12:02 +0000 schrieb Avl Jawrowski:
> > > > > Hi,
> > > > > 
> > > > > hermann pitton <hermann-pitton <at> arcor.de> writes:
> > > > > 
> > [snip]
> > > > 
> > > > > > The only other issue I'm aware of is that radio is broken since guessed
> > > > > > 8 weeks on my tuners, only realized when testing on enabling external
> > > > > > active antenna voltage for DVB-T on a/some 310i.
> > > > > > 
> > > > > > Might be anything, hm, hopefully I should not have caused it ;)
> > > > > 
> > > > > The radio works for me, even if there's much noise (I don't usually use it).
> > > > > I'm using the internal audio cable.
> > > > 
> > > > The radio is broken for all tuners, you must be on older stuff.
> > > > 
> > > > I finally found the time to do the mercurial bisect today.
> > > > 
> > > > It is broken since Hans' changeset 12429 on seventh August.
> > > 
> > > What are the symptoms? What application do you use to test the radio?
> > > I don't immediately see why that changeset would break radio support as
> > > it only affects VIDIOC_G_STD and VIDIOC_G_PARM.
> > > 
> > > Regards,
> > > 
> > > 	Hans
> > 
> > Hans, it are indeed only the v4l1 apps like radio, qtradio, gnomeradio
> > and fm from fmtools. Avl is right, mplayer does still work and also
> > kradio.
> > 
> > So the trouble happens in the v4l1 compat layer.
> > 
> > Symptoms are, that you just have loud static noise and tuning has not
> > any effect. Also no signal and/or stereo detection.
> > 
> > "fm" gives now "ioctl VIDIOCGTUNER: Invalid argument".
> 
> Hermann, I've fixed this in v4l1-compat.c. Can you try this tree:
> 
> http://www.linuxtv.org/hg/~hverkuil/v4l-dvb
> 
> If this works (and I expect it will), then I'll post a pull request for this.
> 
> Regards,
> 
> 	Hans

Hans, it works and restores previous behavior.

Tested-by: hermann pitton <hermann-pitton@xxxxxxxx>

Thanks for the quick fix.

Cheers,
Hermann

> > 
> > qtradio
> > Using v4l
> > Video4Linux detected
> > 87 - 108
> > SIGNAL = 0
> > SIGNAL = 0
> > VIDIOCGAUDIO: Ungültiger Dateideskriptor
> > VIDIOCSAUDIO: Ungültiger Dateideskriptor
> > VIDIOCGAUDIO: Ungültiger Dateideskriptor
> > VIDIOCSAUDIO: Ungültiger Dateideskriptor
> > 
> > Tested on old style simple tuners, some tda9887 stuff and
> > tda8275a/tda8290/saa7131e, on both x86 and x86_64, with some 2.6.29 and
> > some 2.6.30.
> > 
> > Cheers,
> > Hermann
> > 
> > 


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