multi-user, udev, consolkit, oh my

[Yan Seiner <yan@seiner.com>]

I'm working on multi-user setups.

I'd like to be assign some resources - like a USB hub - to a seat and 
have hotplug for that hub work only for that seat.

Currently, what happens is that a user plugs in a camera, and hal 
reports the event.  All of the concurrent gnome-volume-manager instances 
then try to grab that resource, and what results is a mess.

consolekit has been suggested as a way to resolve this, but I can't 
figure out how to use it.

googling around, I've found suggestions for using udev to limit access 
to usb devices by creating a group that only has access to the usb 
subsystem.

If I want to group some resources and only have those resources on 
behalf of a specific user, and not any other, is there a way to do 
that?  Can I set up groups for hotplugging usb devices and set it up so 
that the event is only reported to specific group members?

Thanks.,

--Yan