[linux-dvb] [Patch] stv0297: The value of the signal strength depends on the configuration of the agc polarity.

Oliver Endriss o.endriss at gmx.de
Sat Oct 27 08:10:28 CEST 2007


e9hack wrote:
> Hi,
> 
> the attached patch fixes the increasing of the signal strength value (higher value = higher signal
> strength) and scales the value to the range of 0..ffff. The charcteristic itself is wrong. To get
> proper values on a TT-C2300 in the range of 40..60% real signal strength, the values from the patch
> should be divide by two. The attached patch doesn't fix the characteristic.

Does this mean that you have a very high (80-100%) STR with this patch?

Imho we may apply some heuristic to get sane values.

We have 0 <= tmp <= 0x1ff. What about
    *strength = (tmp/2) * (tmp/2)"
?

CU
Oliver

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