[media] cx22702: Fix signal strength

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The signal strength value returned is not quite correct, it decreases
when I increase the gain of my antenna, and vice versa. It also
doesn't span over the whole 0x0000-0xffff range. Compute a value which
at least increases when signal strength increases, and spans the whole
allowed range.

In practice I get 67% with my antenna fully amplified and 51% with
no amplification. This is close enough to what I get on my other
DVB-T adapter with the same antenna.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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Jean Delvare 2012-02-12 15:03:03 -03:00 • committed by Mauro Carvalho Chehab

parent 6c5637e4ed

commit 06302ffbb4

1 changed files with 19 additions and 3 deletions

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drivers/media/dvb/frontends/cx22702.c

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