Document this behaviour
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
* This is a local modification only affecting only this representation of
* this device.
*
+ * If this function is called with a type of EV_ABS and EV_REP on a device
+ * that already has the given event code enabled, the values in data
+ * overwrite the previous values.
+ *
* @param dev The evdev device, already initialized with libevdev_set_fd()
* @param type The event type to enable (EV_ABS, EV_KEY, ...)
* @param code The event code to enable (ABS_X, REL_X, etc.)