Signed-off-by: mysterywolf

components/libc/compilers/armlibc/sys/ioctl.h

+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-09-01     Meco Man     First Version
+ */
+#ifndef _SYS_IOCTL_H
+#define _SYS_IOCTL_H
+
+
+
+#endif

components/libc/compilers/armlibc/sys/unistd.h

@@ -46,4 +46,8 @@
 #define O_SYNC      _FSYNC
 #endif
 
+
+int     isatty      (int fd);
+char *  ttyname     (int desc);
+
 #endif /* _SYS_UNISTD_H */