On Fri, Feb 4, 2011 at 9:36 AM, Tim Niemueller <tim@xxxxxxxxxxxxx> wrote:
> I see your point, but I still have my doubts about a single package to rule
> them all.
(thanks for the CC!)
Doesn't have to rule them *all*. Your point that some hw does require
very specific drivers is valid, and anything that fits that model can
stand alone (packing its own udev, PK -- if relevant at all!).
I am focussing on robot kit that gets connected via USB. Maybe I
should re-brand this as "unified udev/PK for usb robots" :-)
> I haven't looked for it myself, yet, so I'm asking if it is possible to have
> kind of a udev/polkit framework package which:
> - sets up a robots group or some kind of entity we can later assign devices
> and their rules to
Yes, I do think we should all use the same group ("robots").
> - include appropriate udev rule and polkit configuration/machinery to grant
> the console user, and any user in a "robots" group, access to said devices
The udev rule will use the group. The polkit rule actually sidesteps
that -- it adds an ACL for the logged-in-user .
> A problem is that several of the devices you mentioned (like the Arduino),
> are not robotic devices per se, they simply can be used in that domain as
> well. Therefore having a "robot-control" or similar package is not what
> people would be looking for.
Ok - but packages can *depend* on it, that's how I expect that this
package gets installed :-)
> I'd suggest to create per-hardware packages that carry the required rules.
If I am supporting 12 devices, I don't want to maintain 12 packages,
each containing 2 files which together total 5 lines. A single package
grouping similar/related devices is a much better solution IMHO.
cheers,
m
--
martin@xxxxxxxxxx -- Software Architect - OLPC
- ask interesting questions
- don't get distracted with shiny stuff - working code first
- http://wiki.laptop.org/go/User:Martinlanghoff
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