Use seat names as prefix, not as suffix, following
a top-down approach and avoiding issues
with applications that may be receiving
doubled signals (legacy + suffixed).
So instead of "mouse,in,seat1" signal will be
"seat,seat1,mouse,in".
Since seat names defined on evas will depend on evas backends,
maybe udev rules, etc, we aren't able to demonstrate it
without manually setting another name for such seats
with efl_input_devices_name_set(). Otherwise
we wouldn't have guarantees it would match
names on EDC.
Bruno Dilly