24

As far as I can tell, triggerhappy is a daemon for handling custom input. Since I have no direct use for this functionality (and there are no rules in /etc/triggerhappy/triggers.d/ by default) I want to remove it (for security/performance/OCD reasons).

But when I try to do so, apt-get removes raspi-config too, since its package depends on triggerhappy.

admin@rpi:/ $ sudo apt-get remove triggerhappy
...
The following packages will be REMOVED:
  raspi-config triggerhappy
...
Removing raspi-config (20160225) ...
Removing triggerhappy (0.3.4-2) ...
Processing triggers for man-db (2.7.0.2-5) ...
admin@rpi:/ $

At first glace, this dependency doesn't make any sense to me.

Why does raspi-config depend on triggerhappy?

Hydraxan14
  • 1,876
  • 1
  • 13
  • 23

1 Answers1

22

Triggerhappy is only used in raspi-config's init script, see line 17 of the init script. There it checks if any of the Shift keys is hold down at boot time to disable the ondemand scaling governor.

That means that raspi-config itself does not really need triggerhappy, just its boot up script. And the way that script uses thd doesn't seem to need the daemon running.

Axel Beckert
  • 1,240
  • 14
  • 27