[linux-dvb] AverTV Hybrid Volar HX

Michael Krufky mkrufky at linuxtv.org
Mon Dec 31 01:06:51 CET 2007

Zdenek Kabelac wrote:
> Hello
> I should start a new thread about this USB2.0 device.
> I'd like to get this device working - from another thread on this list
> it looks like it should be possible to achieve.
> So I'd like to get some information (and eventually some irc
> help/short introduction) how to make it working.
> I've tried simply to extend current Aver Volar Dib0700 code :) however
> except from the fact I get  firmware loader somewhere, I'm for this
> moment lost (well it's been just a wild blind try what will happen ;))
> I'll repeat which chips I could find in the USB device -
> SAA7136E,CY7C68013A,TDA18271HDC1
> So how could I connect these pieces together into some usable stage
> (at least for DVB-T for this moment.
> Which tree should I select (where all these chips would be supported
> at the some time - from the first overview it looks like there is way
> too many different trees.

You should base your work off the master branch.  The tda18271 driver in that tree should work well enough for you.  I don't know anything about the IF within the saa7136 -- I would guess it is something like a tda8290 or tda8295, which may need some work for analog support.  For digital tv, you can attach the tda18271 the same way as is done in cx23885-dvb for the hvr1800, with alt_tuner=1.

You'll have some work to do to get the saa7136 analog video decoder working as well... I've heard it may be compatible with the saa7134 code, but that driver currently expects to be used as a PCI bridge.

Given the CY7C68013A, you probably don't want to touch any of the dib0700 code, although we still don't know what digital demod / channel decoder is used in your device.  Are there any other chips inside?



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