[linux-dvb] Terratec Cinergy Hybrid T USB XS: new Information

Thomas Kaiser (linux-dvb) linux-dvb at kaiser-linux.li
Wed Jan 4 23:41:22 CET 2006


Hello Mike

Thanks for the quick response. See my answer/questions/thoughts below.

Mike Krufky wrote:
> Thomas Kaiser (linux-dvb) wrote:
> 
>> Hello Developer
>>
>> I asked one or two weeks ago on this list if there is a plan to 
>> support the above device. I never got an answer from the list :-(.
>>
>> So, I started to do some research.
>> I took the beast apart to see which chips are in use. I documented 
>> everything so far on my homepage. Please, see 
>> http://www.kaiser-linux.li/index.php/Linux_and_TV
> 
> 
> [chip info moved below]
> 
>> I did some usbsnoops which can be found on my site, too.
>>
>> It looks like we have to find out how the USB-Brige (EM2880) is 
>> working. I could not find a datasheet on the net for this device :-(
>>
>> I really like to see this device working under Linux :-)
>>
>> So, what are the next steps we have to do?
>> I am ready.
>>
>> Regards, Thomas
>>
> Thomas,
> 
> Take a look in the v4l-dvb tree...  We already have a driver for em2800, 
> em2820, and em2840 usb controllers... You may want to speak to mchehab, 
> mrec, cavedron, or sasha, to find out if support can be added for 
> em2880, or if it may already be supported by the em28xx driver...
> 
> linux/drivers/media/video/em28xx
I will take a look.

> 
> OTOH, em28xx does not yet have a dvb layer.... This can be added, but so 
> far we havent encountered any devices that call for it, until now.
> 
>> Following chips are used on the Terratec Cinergy Hybrid T USB XS:
>> # Tuner (receiver): XCEIVE XC3028
This chip has a 2-wire interface (I2C?). Form where are the commands 
comming? From an other chip or from USB trought the USB-Bridge?

> 
> 
> ^^ this is a very popular tuner, but unfortunatly, is not supported in 
> linux at this time, due to lack of proper specs required to create a 
> driver... I'm sure some other developers have run into this in the past 
> as well... Unfortunately, I dont have an answer for this tuner, although 
> supporting it would open up the possibilities of supporting many more 
> devices.
> 
>> # Demodulator: ZARLINK ZL10353
> 
> 
> ^^ never heard of it.... Zarlink has some other demod's that ARE 
> supported, however... Maybe a driver can be written for this... /me 
> isn't sure.
Actually, it is a replacement for the MT352 and pin compatible.

> 
>> # Videodecoder: 5150AM1
> 
> 
> ^^  might this be a TVP5150 ?  (supported in v4l)
>
I think so, but there was no "TVP" on the chip


>> # Sound (only for analog?): EMPIA EMP202
> 
> 
> ^^ not sure
> 
We will see.


>> # USB Bridge: EMPIA EM2880
>> # Multiplexer (I don't know for what this is used): HC4052
>> # EEPROM?: 24C02N
>> #  ???: P13C3306LE
> 
> 
> ...well thats SOME information for you... although not quite the 
> greatest news, but I hope this helps.
> 
> Michael Krufky
> 
> 
> 

Regards, Thomas


-- 
http://www.kaiser-linux.li



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