Add license information to source

[pistorm] / gpio / ps_protocol.c

diff --git a/gpio/ps_protocol.c b/gpio/ps_protocol.c
index 92ec2ffcfdf041466e5dd3f78ad32c425820d1d4..cc21af6c27b35b268b78fffc460e4fa4d1241709 100644 (file)
--- a/gpio/ps_protocol.c
+++ b/gpio/ps_protocol.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 /*
   Original Copyright 2020 Claude Schwarz
   Code reorganized and rewritten by