1 files changed, 1 insertions, 0 deletions
diff --git a/glcd.h b/glcd.h
index 29d43954..bda5013d 100644
--- a/glcd.h
+++ b/glcd.h
@@ -72,6 +72,7 @@ struct GLCDDriver {
   /** @brief Virtual Methods Table.*/
   const struct GLCDDriverVMT *vmt;
   _base_asynchronous_channel_data
+  /* WARNING: Do not add any data to this struct above this comment, only below */
 };
 
 #ifdef __cplusplus