1 files changed, 19 insertions, 0 deletions

diff --git a/keyboards/lets_split/uno-slave/uno-matrix.h b/keyboards/lets_split/uno-slave/uno-matrix.h
new file mode 100644
index 000000000..c0f636f80
--- /dev/null
+++ b/keyboards/lets_split/uno-slave/uno-matrix.h
@@ -0,0 +1,19 @@
+#ifndef UNO_MATRIX
+#define UNO_MATRIX
+
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 6
+
+#include <stdbool.h>
+
+typedef uint8_t matrix_row_t;
+
+uint8_t matrix_rows(void);
+uint8_t matrix_cols(void);
+void matrix_init(void);
+uint8_t matrix_scan(void);
+bool matrix_is_modified(void);
+bool matrix_is_on(uint8_t row, uint8_t col);
+matrix_row_t matrix_get_row(uint8_t row);
+
+#endif