From c929aea04dd2c2f41618904216a36ae430a7ea5b Mon Sep 17 00:00:00 2001
From: mvoelkel <mvoelkel@digitaldevices.de>
Date: Wed, 29 Jun 2016 17:20:28 +0200
Subject: [PATCH] =?UTF-8?q?Signalstrength=20conversion=20dB=C2=B5V=20to=20?=
 =?UTF-8?q?dBm?=
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---
 frontends/cxd2843.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/frontends/cxd2843.c b/frontends/cxd2843.c
index 9d3971d..10e8a3b 100644
--- a/frontends/cxd2843.c
+++ b/frontends/cxd2843.c
@@ -1335,15 +1335,18 @@ static int get_stats(struct dvb_frontend *fe)
 {
 	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
 	u16 val;
+	s64 str;
 
 	if (fe->ops.tuner_ops.get_rf_strength)
 		fe->ops.tuner_ops.get_rf_strength(fe, &val);
 	else
 		val = 0;
 
+	str = 1000 * (s64) (s16) val;
+	str -= 108750;
 	p->strength.len = 1;
 	p->strength.stat[0].scale = FE_SCALE_DECIBEL;
-	p->strength.stat[0].uvalue = 1000 * (s64) (s16) val;
+	p->strength.stat[0].uvalue = str;
 	
 	read_snr(fe, &val);
 	p->cnr.len = 1;