Re: Communicating tablet mode status to userspace

On Wed, Oct 3, 2012 at 5:05 PM, Greg KH <[email protected]> wrote:
> On Wed, Oct 03, 2012 at 08:52:31AM -0600, Daniel Drake wrote:
>> On Tue, Oct 2, 2012 at 5:36 PM, Dmitry Torokhov
>> <[email protected]> wrote:
>> > Why can't you change event device ownership to the local user?  Then you
>> > can read and act upon events.
>>
>> That would work, I guess.
>>
>> However, it sounds like your suggesting that we add some custom rules
>> in OLPC's own builds and leave it at that. I'm not sure what
>> user/group we could use for a generic rule matching this hardware.
>
> That shouldn't be a custom rule, other distros bind the keyboard / mouse
> to the local user in order to handle the multi-seat situation properly.
> That should all be done already in the console-kit logic (or whatever
> handles it now.)
>
> Have you looked into that?

The usual model is not uid/gid, it's ACLs dynamically applied for
logged-in users with active sessions:
  http://www.freedesktop.org/software/systemd/man/systemd-logind.service.html
  http://cgit.freedesktop.org/systemd/systemd/tree/src/login/70-uaccess.rules

Kay
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