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

Luca Olivetti luca at ventoso.org
Mon Dec 11 14:51:34 CET 2006


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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