[linux-dvb] AverTV Hybrid Volar HX

Manu Abraham abraham.manu at gmail.com
Wed Jan 2 20:53:18 CET 2008

Zdenek Kabelac wrote:
> 2008/1/1, Manu Abraham <abraham.manu at gmail.com>:
>> Zdenek Kabelac wrote:
>>>> There is a OSS driver upcoming, supported by the chip manufacturer themselves
>>>> (AFA Technologies.) I have been a bit involved in that process.
>>> Yep - looks nice - and do you have any idea about the release date?
>> I don't have a date, but the chip manufacturer as well as everybody involved is under
> I mean - is it question for few weeks or couple months?

I guess it would be a few weeks. In fact working on a similar but different device as of now.

>>> Maybe I could help with testing and reporting bugs ?
>>> As I can see it would be probably useless to try hacking any code for
>>> this device myself.
>> The current state of testing is that, one needs to understand the chip internals and
>> the testing happens in the Labs alone (lot of undocumented things in there,
>> documentation being really crap), with some basic tests we have going on. As soon
> Well I wouldn't be afraid even from this kind of testing - I think I
> have enough skills for this.
> If you have some pieces of chip docs you could pass to me...

I would suggest that you request AFA for docs. One needs to be under NDA or so. 
(Though the docs are quite confusing)

>> I have redone the driver a few times by now, trying to handle the different aspects.
>> There have been some discussions on this ML also, on the same a while back.
> Actually I've done some search through the list and I've found this:
> It looks like there are actually 3 different drivers for Afatech chip:
> (and look quite different)
> 1.) on from you: http://jusst.de/hg    (last commit before 7 weeks)
> 2.) another from Antti Palosaari  (crope)
> 3.) by afatech ??  http://af.zsolttech.com/ by Rick Huang
> Which leads me to the question - is it actually coordinated somehow?
> What is the plan - which driver will go to kernel ??
> (IMHO the current situation looks a bit weird at this moment)

Nothing weird, the chip is a bit flexible, with that flexibility it brings in a lot of troubles.

1) a second attempt at getting it right (got many things right, but some went wrong. 
Works with just one device alone)

2) a RE driver for the AF9015 chip based, for a MASTER device based configuration.

3) an AF9015 driver which was done by AFA for one customer, who violated the NDA, 
which is almost the source for 2 but very much specifically written for one tuner in mind.
According to AFA Tech, None of these they would like to have in kernel, since they 
wouldn't be able to support newer configurations based on them.
> And when you are say you are working on some driver - by this you mean
> only af901x ? (So I could try those other two if they will not work by
> some miracle)

Neither 3 will work. Lot of differences, what's common is very small.
> Or when you release your code my AverTV HX will work out-of-the-box?

At least digital should work for you (when done), though there will be the need for a 
small stub additionally.


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