Add include guards

diff --git a/include/extdrv/epaper.h b/include/extdrv/epaper.h
index 00aa614..fc4724a 100644 (file)
--- a/include/extdrv/epaper.h
+++ b/include/extdrv/epaper.h
@@ -26,6 +26,10 @@
  * artists on the GPIO Demo module.
  */
 
+
+#ifndef EXTDRV_EPAPER_H
+#define EXTDRV_EPAPER_H
+
 #include <stdint.h>
 #include "core/pio.h"
 #include "drivers/timers.h"
@@ -119,3 +123,5 @@ void epaper_send_frame(uint8_t* image, uint8_t stage);
  */
 void epaper_send_partial_frame(uint8_t* image, uint8_t start_line, uint8_t nb_lines, uint8_t stage);
 
+#endif /* EXTDRV_EPAPER_H */
+