From 717e84f7b24a49ad4242cbc3d4c73e2cea8e3997 Mon Sep 17 00:00:00 2001
From: Hauke Petersen <hauke.petersen@fu-berlin.de>
Date: Thu, 5 Jul 2018 14:03:27 +0200
Subject: [PATCH] sys/stdio: factor out STDIO abstraction

---
 sys/include/stdio_base.h | 63 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 sys/include/stdio_base.h

diff --git a/sys/include/stdio_base.h b/sys/include/stdio_base.h
new file mode 100644
index 0000000000..e76bd2ff19
--- /dev/null
+++ b/sys/include/stdio_base.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
+ *               2018 Freie Universität Berlin
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @defgroup    sys_stdio STDIO abstraction
+ * @ingroup     sys
+ *
+ * @brief       Simple standard input/output (STDIO) abstraction for RIOT
+ *
+ * @{
+ * @file
+ *
+ * @author      Kaspar Schleiser <kaspar@schleiser.de>
+ * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
+ */
+
+#ifndef STDIO_BASE_H
+#define STDIO_BASE_H
+
+#include <unistd.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief initialize the module
+ */
+void stdio_init(void);
+
+/**
+ * @brief read @p len bytes from stdio uart into @p buffer
+ *
+ * @param[out]  buffer  buffer to read into
+ * @param[in]   max_len nr of bytes to read
+ *
+ * @return nr of bytes read
+ * @return <0 on error
+ */
+ssize_t stdio_read(void* buffer, size_t max_len);
+
+/**
+ * @brief write @p len bytes from @p buffer into uart
+ *
+ * @param[in]   buffer  buffer to read from
+ * @param[in]   len     nr of bytes to write
+ *
+ * @return nr of bytes written
+ * @return <0 on error
+ */
+ssize_t stdio_write(const void* buffer, size_t len);
+
+#ifdef __cplusplus
+}
+#endif
+/** @} */
+#endif /* STDIO_BASE_H */
-- 
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