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-rw-r--r--components/libc/compilers/common/poll.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/components/libc/compilers/common/poll.h b/components/libc/compilers/common/poll.h
index 1862373559..aea73d6eaf 100644
--- a/components/libc/compilers/common/poll.h
+++ b/components/libc/compilers/common/poll.h
@@ -1,3 +1,12 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2021-09-11 Meco Man First version
+ */
#ifndef __POLL_H__
#define __POLL_H__