[linux-dvb] Re: Couple of frontend questions

[Oliver Endriss <o.endriss@gmx.de>]

On Monday 01 March 2004 12:09, Andrew de Quincey wrote:
> I only have access to a few sat dishes, all of which are professional quality 
> with quad LNBs. I haven't ever actually experienced LNB drift. Currently the 

Same here.

> only use I have for the zigzagging code is to finetune during the initial 
> lock. Ideally, that would be done in a userspace library.

Full ack. IMHO the driver should return the frequency offset (if possible).
An application could use this offset and save the info. This could improve
tuning speed...

> _However_, from what Johannes and Holger were saying, removing zigzag from the 
> dirver has been tried before, but had to be re-added because it just didn't 
> work right without it.

Some frontends may need it, others don't.

> I suggest we implement my IOCTL suggestion, _as well as_ equivalent module 
> parameters, which by default will be set on, so as not to break people who do 
> need the current beheviour. The module parameters can then be used to 
> override everything else by those who know for sure that they don't need any 
> of the fancier stuff.

If the application developers will implement these options, it will be fine.
For me, module parameters are sufficient (maybe zigzag range + step size).

Oliver

P.S.:
No need to CC me. I'm reading the ML. ;-)


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