[pvrusb2] WinTV HVR-1950 and openSUSE 11.1, no dtv selection in ctl_input

[Mike Isely]

On Tue, 31 Mar 2009, Chris Cox wrote:

> Well... I have a feeling openSUSE 11.1 has a broken v4l implementation in the
> kernel, but just in case I'm just being stupid...
> 
> The device and firmware load fine and a dvb frontend0 device gets
> registered according to the startup logs....
> 
> And analog tuning works just fine.

If you've gotten analog to work then the pvrusb2 driver is likely 
running correctly.  A lot more has to be working in order to support 
analog mode than digital mode.  When in analog mode just about the only 
aspect not exercised is the digital portion of the tuner - but since the 
tuner is really one part, the fact that analog is working also says that 
communications with that chip is working as well.


> 
> But I can't get dvb (QAM) to work.  I tried getting the dvb tools
> and running them, but they say "Operation not permitted" when trying
> to use the /dev/dvb/adapter0/frontend0 file.
> 
> Any hints?  Solutions?

What user are you running as when you try?  Just as a test, try it as 
root.  If it works then this does NOT mean that you must run as root, 
but it will prove that DVB is operating correctly - and that the real 
issue has to do with how your distro is managing user-level access to 
the hardware.


> 
> I have no dtv option inside my ctl_input/enum_val just
> 
> $ cat enum_val
> television
> composite
> s-video

This list will change depending on various conditions.  In particular 
the dtv choice will NOT show up if you have an analog interface (e.g. 
/dev/video0) open.  Rather than explaining this again here, go instead 
to this page:

http://www.isely.net/pvrusb2/usage.html#Interactions

and scroll down to the section titled "V4L vs DVB interactions".

  -Mike

-- 

Mike Isely
isely @ pobox (dot) com
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