fix compiling warning.

1 files changed, 3 insertions, 2 deletions

diff --git a/components/libc/posix/io/termios/termios.c b/components/libc/posix/io/termios/termios.c
index 84061079d9..ece9081d9d 100644
--- a/components/libc/posix/io/termios/termios.c
+++ b/components/libc/posix/io/termios/termios.c
@@ -13,6 +13,7 @@
 #include <unistd.h>
 #include <sys/errno.h>
 #include "termios.h"
+#include <rtthread.h>
 
 int tcgetattr(int fd, struct termios *tio)
 {
@@ -95,12 +96,12 @@ int tcsendbreak(int fd, int dur)
 
 int tcflush(int fd, int queue)
 {
-    return ioctl(fd, TCFLSH, (void*)queue);
+    return ioctl(fd, TCFLSH, (void*)(rt_ubase_t)queue);
 }
 
 int tcflow(int fd, int action)
 {
-    return ioctl(fd, TCXONC, (void*)action);
+    return ioctl(fd, TCXONC, (void*)(rt_ubase_t)action);
 }
 
 /**