Steven Toth wrote: > Manu Abraham wrote: >> Steven Toth wrote: >>> Manu Abraham wrote: >>>> 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. >>> That would work, but it's kind of a hack. Why not have a mechanism for >>> routing content directly into a cam and back into the s/w demux as >>> required? >> >> Although sounds nice to hear, In kernel copying in a TS to "another" >> device might be like shooting oneself in the foot. > > I'd settle for seeing a working solution under Linux, however it > happens. I suspect whoever takes the docs and builds something will most > likely get traction with their ideas. With GPL drivers it can evolved > over time. > > Getting the docs out, rather than worrying about implementation, is > higher on my priority list. > > Gathering feedback from the apps devs is just as important (IMHO). > > - Steve > glad to see this topic is gathering so much interest ! progress : installed XP Professional, usbsnoop and the Hauppauge drivers so now I can capture the data and commands going to and from the WinTV-CI first capture I made seemed OK, not easy to find meaning in it, though. The expected docs will solve that mystery. the driver complained it couldn't find a supported DVB-card (there's currently only a KNCOne TV-Station in there), so I ordered a WinTV-NOVA S Plus, and will be able to capture the full range of commands/data shortly plans : write a minimalist device driver, manage firmware, and expose a basic interface through /dev/something write a userspace commandline utility that uses this device to descramble recordings from a DVB-S card (disk -> WinTV-CI -> disk) (this would get me the functionality of my Arion AF-9280PVR settop box that records up to 4 scrambled streams and decodes afterwards) get MythTV to use the utility as a postprocessing task, and multi-card, multi-stream recording of payTV is possible getting a supported DVB-S card and the WinTV-CI to work seamlessly together would be the ultimate goal, how best to do this is for the moment unclear to me comments and suggestions welcome, as always Luc _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
