[linux-dvb] re: megasky does it actualy tune then???

Andrew Waldram andy at samuri.demon.co.uk
Thu Oct 19 23:38:51 CEST 2006


How right you are

these patches do not help at all
it does look like Malcolm could well be right.

Is there any good documentation where to start sniffing/reverse
engineering (I'm not stupid but pretty vague at times;-) )


On Thu, 2006-10-19 at 17:04 -0400, Michael Krufky wrote:
> > On Thu, 2006-10-19 at 16:13 -0400, Michael Krufky wrote:
> >> The problem is not in the megasky m920x / gl861 driver itself -- rather,
> >> the qt1010 code is not complete.  There are some pending patches on the
> >> linux-dvb list that you should feel welcome to try.  I have not applied
> >> these yet, because I am unsure as to whether or not they are appropriate.
> 
> Andrew Waldram wrote:
> > Ah I'll dig them out and give them a whirl let you know
> 
> Even still, I dont think those patches will solve it entirely.  As I
> understand it, the qt1010 code was reverse engineered...  This means that
> as it is now, it will probably only work for the tv standards used by the
> author who did that reverse engineering.
> 
> (megasky contributors cc'd)
> 
> Markus has told me that the qt1010 code doesnt work in his em2880 devices
> either, so I have to assume it is due to this very fact.
> 
> If you're feeling adventurous, it might be a good idea to sniff usb
> traffic from the windows driver, and see how the tuner is being controlled.
> 
> Perhaps you might need an alternate setup in qt1010.h for it to work
> properly.  If we can get a working setup from you, hopefully qt1010.h can
> eventually be converted into a proper tuner module, and work for various
> different setups.
> 
> Unfortunately, since both m920x and gl861 drivers use qt1010, and there
> arent yet any known working devices using m920x or gl861 with a tuner other
> than qt1010, we'll have to continue to hold this code in the experimental
> megasky repository.
> 
> I'll do my best to keep this tree relatively up-to-date with the master
> repository.  We're a bit behind right now, but nothing significant.  If there
> are any major API changes in the master branch, I will regenerate the megasky
> tree to reflect them.
> 
> Cheers,
> 
> Mike



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