http://unix.stackexchange.com – Simple problem, not so simple solution as it seems to me. Whenever I try to start viewing my webcam, I get the following error: libv4l2: error turning on stream: Input/output error be it cheese, camorama or vlc. Except in some special cases which I can not reproduce, where it will just work. I've tried to compile it as a kernel module or right into the kernel. (HowTos)