Hi,
the attached patch fixes the increasing of the signal strength value (higher value = higher signal
strength).
- Hartmut
sugned-off-by: Hartmut Birr <e9hack@xxxxxxxxxxxxxx>
- The value of signal strength depends on the configuration of the agc polarity.
diff -r 4ae65d0844cf linux/drivers/media/dvb/frontends/tda10021.c
--- a/linux/drivers/media/dvb/frontends/tda10021.c Thu Oct 18 16:25:58 2007 -0200
+++ b/linux/drivers/media/dvb/frontends/tda10021.c Mon Oct 22 21:58:47 2007 +0200
@@ -310,7 +310,11 @@ static int tda10021_read_signal_strength
{
struct tda10021_state* state = fe->demodulator_priv;
- u8 gain = tda10021_readreg(state, 0x17);
+ u8 config = tda10021_readreg(state, 0x02);
+ u8 gain = tda10021_readreg(state, 0x17);
+ if (config & 0x02)
+ /* the agc value is inverted */
+ gain = ~gain;
*strength = (gain << 8) | gain;
return 0;
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