TC 7.2 - /dev/input devices are in group root

[bernhard]

is this a deliberate feature or more a bug that /dev/Input/Event[0-4], /dev/input/mouse0 and /dev/input/mice are in in group root so only the super user can read from them or shouldn't they be in group staff.

Background: I have a framebuffer application, which needs to read from /dev/input/event4
and I can start it either as root or after I've done a chown :staff /dev/input/event4

regards
--
  Bernhard

[bernhard]

it should have been /dev/input/event[0-4] instead of  /dev/Input/Event[0-4] (I have no idea how to switch off auto-capitalization).

[patrikg]

Have you tried to make a work around like symbol link ?

[bernhard]

no, but since /dev/fb0 has also root/staff as owner/group membership, I think the same would be preferable for the devices in /dev/input ...

[curaga]

I believe those are common Linux defaults, preventing users from reading each other's input. So a chown in bootsync.sh should be fine for your application.

[bernhard]

thanks

[bernhard]

just a remark:
Raspbian puts these devices in a group named input and the default user pi ia member of that group. This looks to me very reasonable.