[linux-dvb] B2C2 SkyStar 2 - P/N 92105-20004U, Rev: 2.7U - support?

Patrick Boettcher patrick.boettcher at desy.de
Sun Dec 10 21:59:35 CET 2006


On Fri, 8 Dec 2006, Stonie Cooper wrote:

> Patrick,
> 
> OK - finally coming up for air, and I think I can spend some time working on
> the ITD1000 chip driver.

ITD1000 is just the "tuner/PLL" (or how the thing is called in DVB-S) 
Depending on the board it might be possible to do more with it (LNB-power 
...) but I don't know.

> I want to be upfront . . . I have the B2C2 proprietary driver, but it quit
> working as of 2.6.17 due to changes in the v4l tree.  Rather than trying to
> choke any support out of the BBTI guys, I'd rather do the right thing and come
> up with a driver for it that is open source.

Writing support for the tuner would be a good thing and if you have the 
bbti-driver you should have all you need to do it.

The thing you got from BBTI is just a linux-dvb-fe-wrapper to their 
Demod/tuner API, I think it is not much sense to put this somewhere, but 
it would be better to have dvb-tuner-ops-driver dedicated to be used in 
linux-dvb.

> What do I need to do?

I hope I'm going to answer your question:

I remember that the PN1010-demod was having a strange tuner-i2c-behaviour: 
after a stop-condition you need to signal to the demod that there is more 
to do (the itd1000 is connected to the demod-i2c-connection to limit the 
i2c-traffic-spurios'). Maybe putting an i2c-adapter inside the 
s5h1420-driver is a first start to have communication.

After that you can write the itd1000-driver. As a template you can you 
mt2060 or any other module which implements dvb_tuner_ops.

Then you have to see how close the current s5h1420-driver is to the 
pn1010-driver used by bbti and merge it so that support for existing 
devices is not broken.

I have two sample of those cards, if you want I can help you in testing 
and writing some code, but I'm going to have some vacation before :) .

HTH,
Patrick.

> Stonie
> 
> On Jun 29, 2006, at 1:51 AM, Patrick Boettcher wrote:
> 
> >Hi,
> >
> >On Tue, 27 Jun 2006, Stonie Cooper wrote:
> >
> > >I have a new dual-voltage B2C2 DVB-S card - r2.7U; running the 2.6.16
> > >kernel,
> > >when doing:
> > >
> > >modprobe b2c2-flexcop-pci
> > >
> > >I received no complaints in dmesg, but no warm fuzzy about detecting a
> > >device,
> > >either.  lspci shows this for the device:
> > >
> > >01:00.0 Network controller: Gammagraphx, Inc. Unknown device 0000 (rev 02)
> > >
> > >Also, any attempt at szap, etc., yields failure to find a frontend.  B2C2
> > >supplied me with a IDT1000-PN1010 driver for the frontend - and it loads
> > >via
> > >insmod - but I still don't get a frontend.
> >
> >This is strange.
> >
> > >Has anyone else tried this card?
> >
> >I have two samples at home, but currently there is no
> >LinuxTV-OpenSource-driver for that. The PN1010 is identical to the
> >s5h1420 - it is just another brand name. Support for the IDT1000 is
> >missing.
> >
> >I have everything there to do it, but absolutely no time. If someone wants
> >to give the development a try, I can probably help.
> >
> >regards,
> >Patrick.
> >
> >--
> >  Mail: patrick.boettcher at desy.de
> >  WWW:  http://www.wi-bw.tfh-wildau.de/~pboettch/




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