Il 03/04/2012 00:40, Antti Palosaari ha scritto:
> 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@xxxxxxxxx>
>> ---
>> 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...
A friend has a AF9015+TDA18218 stick and told me that it works fine with
the patch (including VHF), but to be safe I will ask him to double check
with the current media_build tree, with and without the patch. In the
worst case, we can add a new parameter (or an array of parameters) for
the IF frequency to struct tda18218_config.
Regards,
Gianluca
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