mchehab: I can easily test analog next week. Reviews for https://patchwork.linuxtv.org/patch/58693/ would be welcome. hverkuil: thanks! on my tests here, analog has issues, but it can well be some troubles with my ivtv board it is failing before and after the vb2 conversion, and it is affecting em28xx too (it might be some regression with poll() or maybe it is just a problem with my machines) hmm... cameras are working fine well, uvc driver ok, em28xx camera also working... it should be some trouble with the ivtv board hmm... it seems that there's indeed some issue with polling... poll([{fd=8, events=POLLIN}], 1, 25000) = 1 ([{fd=8, revents=POLLIN}]) read(8, "\1\0\0\0\0\0\0\0", 16) = 8 poll([{fd=8, events=POLLIN}], 1, 25000 camorama is waiting for several seconds at the above hmm... unrelated bad contact at the output cable VB2 is working properly with analog TV and cx231xx nice! hverkuil: I'll run more tests, but it sounds that the only issue with VB2 conversion was due to https://patchwork.linuxtv.org/patch/58702/ So DVB is working fine as well? I didn't test switching between analog/DVB yet... I used a different device for analog TV (a capture device), and an ISDB-T device for DVB analog TV tested via composite Not bad for something I did 4 years ago :-)