On 2012-09-15 18:34, Mauro Carvalho Chehab wrote:
> $ cat /TV_CARD.diff
> diff --git a/drivers/media/common/tuners/tda8290.c
> b/drivers/media/common/tuners/tda8290.c
> index 064d14c..498cc7b 100644
> --- a/drivers/media/common/tuners/tda8290.c
> +++ b/drivers/media/common/tuners/tda8290.c
> @@ -635,7 +635,11 @@ static int tda829x_find_tuner(struct dvb_frontend *fe)
>
> dvb_attach(tda827x_attach, fe, priv->tda827x_addr,
> priv->i2c_props.adap,&priv->cfg);
> + tuner_info("ANDERS: setting switch_addr. was 0x%02x, new
> 0x%02x\n",priv->cfg.switch_addr,priv->i2c_props.addr);
> priv->cfg.switch_addr = priv->i2c_props.addr;
> + priv->cfg.switch_addr = 0xc2 / 2;
No, this is wrong. The I2C address is passed by the bridge driver or by
the tuner_core attachment, being stored at priv->i2c_props.addr.
What's the driver and card you're using?
lspci -vv:
03:06.0 Multimedia controller: Philips Semiconductors
SAA7131/SAA7133/SAA7135 Video Broadcast Decoder (rev d1)
Subsystem: Pinnacle Systems Inc. Device 002f
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64 (21000ns min, 8000ns max)
Interrupt: pin A routed to IRQ 21
Region 0: Memory at fdeff000 (32-bit, non-prefetchable) [size=2K]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME-
Kernel driver in use: saa7134
Kernel modules: saa7134
Without the patch I get a layer of noise added. Kind of like a weak
aerial signal to an old analogue TV set.
-Anders
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