#error "MATRIX_COLS: invalid value"
#endif
+#if (MATRIX_ROWS <= 8)
+typedef uint8_t matrix_col_t;
+#elif (MATRIX_ROWS <= 16)
+typedef uint16_t matrix_col_t;
+#elif (MATRIX_ROWS <= 32)
+typedef uint32_t matrix_col_t;
+#else
+#error "MATRIX_ROWS: invalid value"
+#endif
+
#define MATRIX_IS_ON(row, col) (matrix_get_row(row) && (1<<col))