+#define NOEVENT (keyevent_t){ \
+ .key = (key_t){ .row = 255, .col = 255 }, \
+ .pressed = false, \
+ .time = 0 \
+}
+
+/* tick event */
+#define TICK (keyevent_t){ \
+ .key = (key_t){ .row = 255, .col = 255 }, \
+ .pressed = false, \
+ .time = (timer_read() | 1) \
+}