Add license information to source

[pistorm] / gpio / ps_protocol.h

diff --git a/gpio/ps_protocol.h b/gpio/ps_protocol.h
index ac3495186713825c391449808f4c7cc8f841f3fd..a4b0c254d7419efb19ca54f4e5bf7ccbe9e32575 100644 (file)
--- a/gpio/ps_protocol.h
+++ b/gpio/ps_protocol.h
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 /*
     Code reorganized and rewritten by 
     Niklas Ekström 2021 (https://github.com/niklasekstrom)