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-rw-r--r--digital/io/src/elevator.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/digital/io/src/elevator.c b/digital/io/src/elevator.c
index 8da3b6c7..3a4a81ee 100644
--- a/digital/io/src/elevator.c
+++ b/digital/io/src/elevator.c
@@ -22,8 +22,14 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* }}} */
+#include "common.h"
#include "elevator.h"
+/**
+ * State of the elevator
+ */
+uint8_t elevator_is_ready;
+
/* +AutoDec */
/* -AutoDec */