[linux-dvb] Re: [PATCH] Enable the BER/UNC counting for the stv0297 frontend

Yvan Gosset ygosset at free.fr
Mon Dec 11 15:29:40 CET 2006


Hello Luca.

Do you have a public repository of your work ?
I am very interesting.

I have analysed all b2c2 files linux driver,
and the only thing that I have not:
it's the detailed datasheet of the flexcop,
and the datasheet of this demodulator : 
what is the best init of this tuner: 
details about AGC, equalizer, etc..

For me, this web site is very good to see all archive of this mailing list:
http://www.mail-archive.com/linux-dvb@linuxtv.org/

At soon, Yvan.

Le Monday 11 December 2006 14:51, Luca Olivetti a écrit :
> En/na Oliver Endriss ha escrit:
> > Well, error_rate = number_of_errors/total_count.
> >
> > From API spec 0.9.4:
> > - 'The BER, as a multiple of 10E-9, is stored into *ber'
> > - example: 'a value of 2500 corresponds to a BER of 2.5*10E-6'
> >
> > Unfortunately, this precise definition was removed from API V3,
> > leaving the meaning of BER undefined. Why was it removed?
> >
> > @all:
> > What should be returned as the bit error rate?
> > Is the definition from the 0.9.4 spec still valid?
> > Imho it makes sense.
>
> I didn't see replies to this question, so I'm asking it again.
> I'm currently writing a driver and I only have access to the raw data
> (and various formulas), so I'd like to know what I have to return as the
> ber, unc, snr and signal strength.
>
> Bye
>-- 
>Luca



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