[linux-dvb] Re: Universal STV0299/TSA5059 frontend driver

[Holger Waechtler <holger@convergence.de>]

Gunther Mayer wrote:
> Holger Waechtler wrote:
> 
>> Peter Schildmann wrote:
>>
>>> Hi,
>>>
>>> On Mon, Dec 09, 2002 at 12:00:28PM +0100, Holger Waechtler wrote:
>>>
>>>> We have to implement some autoprobing as you can see it in ves1820.c.
>>>
>>>
>>>
>>>
>>> The only possibility is to use the I2C address of the TSA5059
>>> for autoprobing - not a good solution. But I suppose that
>>> all boards with an identical subsystem ID are equipped with
>>> the same frontend. If so we can "detect" the frontend by means
>>> of the subsystem ID.
>>
>>
>>
>> no, it's the opposite way: There are some cards with the same 
>> subsystem id but different frontends out there, so we have to use the 
>> i2c addresses to perform this probing - that's the only 
>> 'machine-visible' difference between the LG, the Alps and the 
>> Philips-frontends based on the stv0299.
> 
> 
> Or the vendor encoded this info in eeprom or GPIO.

This is again specific for the PCI cards and won't work for any 
SetTopBox containing the same frontend.

Holger




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