[linux-dvb] Re: CX88 i2c issue w/ DVB tuners

[Holger Waechtler <holger@qanu.de>]

Andrew de Quincey wrote:

> Tum te tum, another small issue with cx88 - the i2c_adap class was always set 
> to I2C_CLASS_TV_ANALOG. Which meant if you happened to have the tda9887 
> analogue tuner loaded, it (incorrectly) grabbed the i2c device that the 
> cx22702 uses.
>
> Attached patch sets the cx88 i2c bus class to I2C_CLASS_TV_DIGITAL if the 
> "dvb" flag is set.
>
> Incidentally, shouldn't all the DVB tuners check the bus class is definitely 
> I2C_CLASS_TV_DIGITAL? Otherwise you might end up with the reverse problem 
> (cx22702 etc taking over the tda9887's i2c device on analogue cards).
>
> Just hope there isn't a card out there with both DVB AND analogue tuners on 
> it....
>  
Some ATSC cards and some modern Reference Designs of major chip vendors 
can receive both digital and analog broadcasts. It's just a matter of 
time until they become widely available.

Holger