Re: [PATCH 3/5] tda18218: fix IF frequency for 7MHz bandwidth channels

[Antti Palosaari <crope@iki.fi>]

On 03.04.2012 00:25, Gianluca Gennari wrote:
> This is necessary to tune VHF channels with the AVerMedia A835 stick.
>
> Signed-off-by: Gianluca Gennari<gennarone@gmail.com>
> ---
>   drivers/media/common/tuners/tda18218.c |    2 +-
>   1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/media/common/tuners/tda18218.c b/drivers/media/common/tuners/tda18218.c
> index dfb3a83..b079696 100644
> --- a/drivers/media/common/tuners/tda18218.c
> +++ b/drivers/media/common/tuners/tda18218.c
> @@ -144,7 +144,7 @@ static int tda18218_set_params(struct dvb_frontend *fe)
>   		priv->if_frequency = 3000000;
>   	} else if (bw<= 7000000) {
>   		LP_Fc = 1;
> -		priv->if_frequency = 3500000;
> +		priv->if_frequency = 4000000;
>   	} else {
>   		LP_Fc = 2;
>   		priv->if_frequency = 4000000;

Kwaak, I will not apply that until I have done background checking. That 
driver is used only by AF9015 currently. And I did that driver as 
reverse-engineering and thus there is some things guessed. I have only 8 
MHz wide signal, thus I never tested 7 and 6 MHz. Have no DVB-T 
modulator either... Maybe some AF9015 user can confirm? Is there any 
AF9015 & TDA18218 bug reports seen in discussion forums...

regards
Antti
-- 
http://palosaari.fi/