[pvrusb2] Tuning problems

[Mike Isely]

On Fri, 24 Nov 2006, Ivar Katmo wrote:

> Hi...
> 
> I'm using the in-kernel driver on an Ubuntu system.
> 
> Things that are working:
> 
> I got no errors in the dmesg, so the driver loads
> correct.
> 
> The log also says:
>   tuner 1-0061: Frequency: 175.25 Mhz
> 
> That happends to be NRK, Norway biggest channel.
> 
> So when I start VLC Media player, select File->Open
> capture device, PVR and click OK that channels shows.
> Yippi!
> 
> But I can't tune the other channels. I've tried
> changing the frequency in VLC and tried searching with
> xawtv (never managed to tune any stations in xawtv at
> all).

I suspect that you won't be able to tune in VLC, because IIRC you have to run 
it there like a "dumb" device, i.e. VLC can't know it is dealing with a V4L 
device.  As for xawtv, you need to set up a frequency table first (see next).

Try using the sysfs interface of the driver to change the frequency.  It 
probably isn't what you would want to do on a normal basis, but this would at 
least tell you that the driver is OK.


> 
> scantv returns "open failed [dev/vbi]" after selecting
> TV norm and frequency table.

Don't worry about /dev/vbi; that isn't implemented in the pvrusb2 driver and 
it isn't needed for tuning.  In scantv you can pass /dev/null for the vbi 
device name and it should work fine.

  -Mike


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