[linux-dvb] Re: Frontend experimental patch v1

[Andrew de Quincey <adq_dvb@lidskialf.net>]

On Tuesday 09 March 2004 00:19, Oliver Endriss wrote:
> On Monday 08 March 2004 20:39, Andrew de Quincey wrote:
> > On Saturday 06 March 2004 13:55, Oliver Endriss wrote:
> > > Until now, I found that FE_SET_PARAMETERS is always called twice,
> > > with fe->state==2 and fe->state==4. Is this intentional?
> >
> > Yeah, thats the frontend-core auto inversion. The stv0299 hardware
> > doesn't support auto inversion by itself.
>
> Anyway, it's not necessary to tune twice when switching transponders.

Yup, will be gone in -v2 of the patch

> After _successful_ tuning, the current inversion setting can be saved.
> The _saved_ value should be tried first. If tuning fails, the inversion
> setting should be toggled.
>
> This way, every frontend can implement auto inversion (in software).

Currently it sets it to AUTO until it gets a lock. Then it remembers inversion 
setting it found.. but it never goes back to AUTO again (until a new 
SET_FRONTEND is done)

Do you have a particular reason in mind for it returning to AUTO if the lock 
is lost?


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