On Thu, Apr 30, 2015 at 5:19 PM, Sebastian Kapfer <[email protected]>
wrote:
> those are virtual directories, which don't really exist on the hard disk.
> They're just simulated by the Linux kernel, and it wouldn't make a whole
> lot of sense to change their permissions. Actually, if you could change
> permissions under /proc, chances are you might break something ;-)
On my laptop I'm very happy to be able to change the permissions of files
in /sys (which are quite similar to files in /proc, at least for what we
use them for).
Example, run at startup:
chown root.me
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight/brightness
chmod g+w
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight/brightness
Thanks to that I can change the brightness with a small script, without
being root or using awfully big and complicated SUID programs.
