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authorKeith Packard <keithp@keithp.com>2017-04-02 19:30:57 -0700
committerKeith Packard <keithp@keithp.com>2017-04-02 19:30:57 -0700
commit09f8710eb320f37f20dda8c635497c2b505d25e2 (patch)
tree92b9c941da227b061df519a3caea09f39202e1d1 /src/drivers/ao_event.h
parent17ec1c510ccc42bbc387940b5805f452697f78d6 (diff)
altos: add button matrix driver
Scans the matrix once per clock tick queuing events for changed keys. Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/drivers/ao_event.h')
-rw-r--r--src/drivers/ao_event.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/drivers/ao_event.h b/src/drivers/ao_event.h
index d1c69d81..d1df6eac 100644
--- 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;