udev rules for webcam

[Tom Horsley]

On Thu, 6 Nov 2014 18:47:23 -0500
Fred Smith wrote:

> not finding anything on that, I hit on writing a udev rule for the
> USB device to make sure it appeared as a predictable /dev/video<x>.

I did something similar to recognize my 3D printer when I plug it
in, and it was quite challenging to make all my code work
because systemd runs things in magic "cgroups" that get killed
quickly and have limited permissions. I eventually got all the
complex stuff I wanted to do working. The full story is here:

http://home.comcast.net/~tomhorsley/hardware/solidoodle/solidoodle-udev.html