Re: WinTV-CI from Hauppauge

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Steven Toth wrote:
> Luc Brosens wrote:
>> all,
>>
>> so I got the WinTV-CI from Hauppauge.  Nice little thing, powered through the USB(2)-port.
>> On the box, is says "Common-Interface extension over USB".
> 
> Cool.
> 
>> There's software with it, but of course only XP and Vista... which are out of the question ;-)
>>
>> I'm contacting Hauppauge's tech support for specs, let's hope they're responsive.
> 
> They won't be able to help, I can - but not for a few weeks.
> 
> I'm expecting to release public USB protocol information during Jan 08 
> which would allow a GPL driver to be written. Right now I have nothing 
> to give you.
> 
> If you feel adventurous, feel free to start now by reverse engineering 
> the protocol with a windows software USB sniffer, it won't be wasted 
> work. The device is Cypress FX2 based (which Linux has lots of examples 
> for) and it loads custom firmware (which Linux has lots of examples of) 
> apart from that I think the protocol is very simple.
> 
> How to integrate it with the kernel s/w demux would be an interesting 
> debate.

In fact, you might not even need the swdemux at all, as the CA stack is all in 
userspace, not in kernel. All you would most probably need is an interface to 
read/write a TS to the USB interface. Maybe easier would be to read the TS 
off the dvr device, parse the TS and write the entire TS into a libusb interface
or similar.

Regards,
Manu


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