[linux-dvb] Re: Remove frequency bending from frontend core

[Patrick Boettcher <patrick.boettcher@desy.de>]

On Tue, 30 Nov 2004, Michael Hunold wrote:

> currently we have struct dvb_frontend which is basically a container for 
> struct dvb_frontend_data. I'd like to unify these two structs and get rid of 
> the frontend list.
>
> This is possible, but currently frequency bending relies on the ability to 
> tell if two frontends are located on the same adapter.
>
> IIRC Convergence has used this "feature" for exactly one demonstration board, 
> where two frontends were located side by side and disturbed each other. It's 
> not used by any of the major cards out there.
DiBcom does also have boards with up to 4 demods on it. Each one with a 
separate tuner and they use the diversity feature. I.e. The TS is passed 
through every demod and each one tries to correct packets the ones before 
did not receive correctly.

These boards are sold for mobile usage, because mobile reception is 
not so easy. E.g. in cars. Maybe in the future a car or at least 
the TV part will be controlled by a linux-controlled embedded system or 
so.

Don't know if the mentioned "feature" applies for this kind of usage. But 
if so, please have this in mind. If not, do it :).

best regards,
Patrick.

--
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