2 files changed, 3 insertions, 3 deletions
diff --git a/cpukit/libcsupport/include/rtems/libio.h b/cpukit/libcsupport/include/rtems/libio.h
index 73c52e31d7..2538b9fe84 100644
--- a/cpukit/libcsupport/include/rtems/libio.h
+++ b/cpukit/libcsupport/include/rtems/libio.h
@@ -1647,7 +1647,7 @@ rtems_status_code rtems_termios_ioctl(
 
 int rtems_termios_enqueue_raw_characters(
   void *ttyp,
-  char *buf,
+  const char *buf,
   int   len
 );
 
diff --git a/cpukit/libcsupport/src/termios.c b/cpukit/libcsupport/src/termios.c
index 4085c5e4a2..b687d27e9c 100644
--- a/cpukit/libcsupport/src/termios.c
+++ b/cpukit/libcsupport/src/termios.c
@@ -636,7 +636,7 @@ rtems_termios_puts (
   rtems_status_code sc;
 
   if (tty->device.outputUsesInterrupts == TERMIOS_POLLED) {
-    (*tty->device.write)(tty->minor, (void *)buf, len);
+    (*tty->device.write)(tty->minor, buf, len);
     return;
   }
   newHead = tty->rawOutBuf.Head;
@@ -1124,7 +1124,7 @@ void rtems_termios_rxirq_occured(struct rtems_termios_tty *tty)
  * Returns the number of characters dropped because of overflow.
  */
 int
-rtems_termios_enqueue_raw_characters (void *ttyp, char *buf, int len)
+rtems_termios_enqueue_raw_characters (void *ttyp, const char *buf, int len)
 {
   struct rtems_termios_tty *tty = ttyp;
   unsigned int newTail;