[linux-dvb] Re: WinTV Nova-CI, DiSEqC and dvbtune

[peter.hettkamp@t-online.de (Peter Hettkamp)]

Hello,

On Fri, Jun 21, 2002 at 12:21:59PM +0200, Johannes Stezenbach wrote:
> 
> That's why we changed the frontend API in the NEWSTRUCT branch.
> The FE_READ_SNR and FE_READ_SIGNAL_STRENGTH ioctls are implemented
> there and simply return values in range 0..0xffff.
> 
what are the expected semantics of these return values?
I am just moving the pctv driver to NEWSTRUCT. The pctv hardware does not
easily supply these values (instead of SNR, it provides a Es/N0 estimation,
which corresponds to the SNR via a table. I do not have this table... Signal
strength might be derived from values in the AGC accumulator, but again
correspondence to any real world value is still unsolved)

Best regards,
Peter Hettkamp
-- 
"Only wimps use tape backup: _real_ men just upload their important stuff
on ftp, and let the rest of the world mirror it ;)"
(Linus Torvalds, about his failing hard drive on linux.cs.helsinki.fi)


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