1 files changed, 16 insertions, 0 deletions
diff --git a/keyboards/crkbd/rev1/split_util.h b/keyboards/crkbd/rev1/split_util.h
new file mode 100644
index 0000000000..f593047560
--- /dev/null
+++ b/keyboards/crkbd/rev1/split_util.h
@@ -0,0 +1,16 @@
+#pragma once
+
+#include <stdbool.h>
+#include "eeconfig.h"
+
+#define SLAVE_I2C_ADDRESS           0x32
+
+extern volatile bool isLeftHand;
+
+// slave version of matix scan, defined in matrix.c
+void matrix_slave_scan(void);
+
+void split_keyboard_setup(void);
+bool has_usb(void);
+
+void matrix_master_OLED_init (void);