altos: add button matrix driver

[fw/altos] / src / drivers / ao_event.h

diff --git a/src/drivers/ao_event.h b/src/drivers/ao_event.h
index d1c69d81b2761d86106200af90c63f7f31ca6b12..d1df6eac4e59d7788721eb4a02814f093eb53dc9 100644 (file)
--- a/src/drivers/ao_event.h
+++ b/src/drivers/ao_event.h
@@ -22,6 +22,7 @@
 #define AO_EVENT_NONE          0
 #define AO_EVENT_QUADRATURE    1
 #define AO_EVENT_BUTTON                2
+#define AO_EVENT_KEY           3
 
 struct ao_event {
        uint8_t         type;