Hi, The most recent version of the Hauppauge WinTV HVR-850 is currently not supported. The previous two hardware versions with USB ID 2040:651f and 2040:7240 are supported but the most recent version with USB ID 2040:b140 is not. I have identified the components in this new version (through a combination of reading the .inf file for the Windows driver and cracking the device open): Interface Bridge: CX23100 Tuner: LGDT3305 Demodulator: TDA18271HDC2 More details in my post on the discussion page for the device on the v4l-dvb wiki: http://linuxtv.org/wiki/index.php/Talk:Hauppauge_WinTV-HVR-850#Possibly_Valuable_Information I believe that all these components already have drivers available. I just don't have the experience to get them together in the cx231xx module. All previous HVR-850 and 950(Q) USB devices used the em28xx or au0828 bridge interface, so I don't have a template to work from in the cx231xx module. Discovering the gpio configuration is also beyond my experience. Any help? Or any existing development on this that I don't know about? Thanks, Seth -- 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