Hi all, Using some usb replay tools used for making the pvrusb2 work, I am able to receive a working MPEG-TS stream, after snooping communication in Windows. It's an ugly way to make things work, but now I'm able to watch television in VLC. It's limited to 758MHz @ 8000KHz, thought, because I only ran an usbsnoop for that specific frequency. So right now I'm able to write the TS stream into a pipe / stdout / file, but creating a (fixed frequency) driver for v4l is way too complicated for me, at the moment. I don't really understand how the v4l dvb drivers work, probably because I'm not really experienced in doing so ;-) Currently, I'm trying to understand how frequency selection works with this chip, and I'll be making a standalone application to save the TS stream. Then, maybe someone else can write a proper v4l driver for this chip. Regards, Bert On Sat, Dec 5, 2009 at 10:45, Jan Sundman <jan.sundman@xxxxxxxxx> wrote: > Hi, > > Thanks for the info, I will have a look and see if it is worth the > trouble. > > Br, > > // Jan > > On Fri, 2009-12-04 at 13:03 -0500, Michael Krufky wrote: >> On Thu, Dec 3, 2009 at 5:03 PM, Devin Heitmueller >> <dheitmueller@xxxxxxxxxxxxxx> wrote: >> > On Thu, Dec 3, 2009 at 4:47 PM, Bert Massop <bert.massop@xxxxxxxxx> wrote: >> >> Hi Jan, >> >> >> >> The datasheet for the TDA18218 can be obtained from NXP: >> >> http://www.nxp.com/documents/data_sheet/TDA18218HN.pdf >> >> >> >> That's all the information I have at the moment, maybe Mike has some >> >> other information (like the Application Note mentioned in the >> >> datasheet, that claims to contain information on writing drivers, but >> >> cannot be found anywhere). >> >> >> >> Best regards, >> >> >> >> Bert >> > >> > Took a quick look at that datasheet. I would guess between that >> > datasheet and a usbsnoop, there is probably enough there to write a >> > driver that basically works for your particular hardware if you know >> > what you are doing. The register map is abbreviated, but probably >> > good enough... >> > >> > Devin >> >> The datasheet is missing too much important information needed to >> write a fully featured driver for the part, and I wouldn't recommend >> using a usbsnoop for this type of tuner, but be my guest and prove me >> wrong. >> >> You might be able to get it working, but you'll end up with tons of >> binary blobs hardcoded for each frequency, unless you use a >> programming guide. Unfortunately, I don't have one that I can share >> :-/ >> >> I think you would be much better off purchasing supported hardware, instead. >> >> Good luck, though... >> >> -Mike >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-media" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-media" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
