My bad. The problem was that I copied some old bttv options to the bttv2 line in my modules.conf when I installed bttv2. I had: options bttv2 card=10 radio=1 It should have just been: options bttv2 card=10 because the "radio=1" option sets the radio minor device number to 1 for the first card, but it should be 64, so the second card fails when it tries to grab minor device 1 for its capture. To use radio devices on both cards, "radio=64,65" would do the trick. Sorry for the noise. s t e f a n On Tue, 30 Jan 2001, Stefan Agamanolis wrote: > > Has anyone had any experience/luck using 2 (two) video capture cards > in the same machine under V4L2/bttv2, or even plain V4L? > > I am trying to do an experiment capturing from 2 camera sources > simultaneously. For the moment, I'm just trying get capture from the > second card to work. I have 2 WinTV Go cards in the same machine. > Capture from /dev/video0 works fine, but /dev/video1 doesn't. It doesn't > get as far as the setup stage. > > I noticed that both cards share IRQ #9. Would that matter? > If not, is there some driver thing that I'm missing here? > Is there some kind of strange option I need to have in modules.conf? > > I'm running RH 6.2 / kernel 2.4.0 / bttv2, testing capture with xawtv. > > Thanks for any help. > -stefan agamanolis > > > > _______________________________________________ > Video4linux-list mailing list > Video4linux-list@xxxxxxxxxx > https://listman.redhat.com/mailman/listinfo/video4linux-list >