how do you call the action "reboot"

[ladiko]

or is it even neccessary?

[dimonomid]

Hm, it looks like this is an unused leftover.

[ladiko]

would it help to use it in a start script which is executed before udev starts? To clean up old entries!? By the way i adjusted the script to add devices to the list during startup but then quit and dont give any audio ouput. Otherwise it would beep on every boot. I just added a line pgrep xinit >/dev/null || exit.

I really like the script. By the way if you dont want to rely on parsing the output of lsusb, you could lookup /sys/$dev_path - there are all the values in file system. Reading them there would also be faster than parsing lsusb. But for the device classes you would have a list in the script as you only get the ID number from the file system: http://www.usb.org/developers/defined_class