1 files changed, 23 insertions, 0 deletions

diff --git a/tmk_core/common/pin_defs.h b/tmk_core/common/pin_defs.h
new file mode 100644
index 000000000..ea730138f
--- /dev/null
+++ b/tmk_core/common/pin_defs.h
@@ -0,0 +1,23 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+// useful for direct pin mapping
+#define NO_PIN (pin_t)(~0)
+
+#if __has_include_next("pin_defs.h")
+#    include_next "pin_defs.h" /* Include the platforms pin_defs.h */
+#endif