read only once from the mouse
read only once from the mouse

given that we create all the buttons and profiles during probe(), there
is no need to re-probe for it every time we access it.
Right now, this works because only ratbag-command uses the library and
is a one shot program.

In the future, we should also read the events to detect changes in the
configuration if the user can use physical buttons to change the profile,
dpi or something else.

Signed-off-by: Benjamin Tissoires <7a0e50e3f6a0939db82b6a8a423c08a163896f41@gmail.com>

bentiss/libratbag-old,libratbag/libratbag,NoXPhasma/libratbag,whot/libratbag-old,cvuchener/libratbag,whot/libratbag-old,cvuchener/libratbag,cvuchener/libratbag,bentiss/libratbag-old,libratbag/libratbag,NoXPhasma/libratbag,whot/libratbag,libratbag/libratbag,whot/libratbag-old,whot/libratbag,bentiss/libratbag-old,NoXPhasma/libratbag,whot/libratbag