diff --git a/c/src/lib/libcpu/arm/ChangeLog b/c/src/lib/libcpu/arm/ChangeLog
index 912c928829..9af10abef5 100644
--- a/c/src/lib/libcpu/arm/ChangeLog
+++ b/c/src/lib/libcpu/arm/ChangeLog
@@ -1,3 +1,8 @@
+2010-04-30	Sebastian Huber <sebastian.huber@embedded-brains.de>
+
+	* at91rm9200/dbgu/dbgu.c, at91rm9200/usart/usart.c,
+	pxa255/ffuart/ffuart.c: Fixed warnings due to Termios API change.
+
 2010-04-30	Sebastian Huber <sebastian.huber@embedded-brains.de>
 
 	* at91rm9200/irq/irq.c, at91rm9200/irq/irq.h, lpc22xx/irq/irq.c,
diff --git a/c/src/lib/libcpu/arm/at91rm9200/dbgu/dbgu.c b/c/src/lib/libcpu/arm/at91rm9200/dbgu/dbgu.c
index 4dbd16e536..259b4d8674 100644
--- a/c/src/lib/libcpu/arm/at91rm9200/dbgu/dbgu.c
+++ b/c/src/lib/libcpu/arm/at91rm9200/dbgu/dbgu.c
@@ -32,7 +32,7 @@ volatile int dbg_dly;
 static int     dbgu_first_open(int major, int minor, void *arg);
 static int     dbgu_last_close(int major, int minor, void *arg);
 static int     dbgu_read(int minor);
-static int     dbgu_write(int minor, const char *buf, int len);
+static ssize_t dbgu_write(int minor, const char *buf, size_t len);
 static void    dbgu_init(int minor);
 static void    dbgu_write_polled(int minor, char c);
 static int     dbgu_set_attributes(int minor, const struct termios *t);
@@ -111,7 +111,7 @@ static int dbgu_read(int minor)
  *
  * return 1 on success, -1 on error
  */
-static int dbgu_write(int minor, const char *buf, int len)
+static ssize_t dbgu_write(int minor, const char *buf, size_t len)
 {
     int i, x;
     char c;
diff --git a/c/src/lib/libcpu/arm/at91rm9200/usart/usart.c b/c/src/lib/libcpu/arm/at91rm9200/usart/usart.c
index 6c52570054..be2b6322e9 100644
--- a/c/src/lib/libcpu/arm/at91rm9200/usart/usart.c
+++ b/c/src/lib/libcpu/arm/at91rm9200/usart/usart.c
@@ -32,7 +32,7 @@
 static int     usart_first_open(int major, int minor, void *arg);
 static int     usart_last_close(int major, int minor, void *arg);
 static int     usart_read_polled(int minor);
-static int     usart_write_polled_support(int minor, const char *buf, int len);
+static ssize_t usart_write_polled_support(int minor, const char *buf, size_t len);
 static void    usart_init(int minor);
 static void    usart_write_polled(int minor, char c);
 static int     usart_set_attributes(int minor, const struct termios *t);
@@ -152,7 +152,7 @@ static void usart_write_polled(int minor, char c)
  *
  * return 1 on success, -1 on error
  */
-static int usart_write_polled_support(int minor, const char *buf, int len)
+static ssize_t usart_write_polled_support(int minor, const char *buf, size_t len)
 {
   at91rm9200_usart_regs_t *usart;
   int nwrite=0;
diff --git a/c/src/lib/libcpu/arm/pxa255/ffuart/ffuart.c b/c/src/lib/libcpu/arm/pxa255/ffuart/ffuart.c
index cf01feea7f..d6c6b0c2c8 100755
--- a/c/src/lib/libcpu/arm/pxa255/ffuart/ffuart.c
+++ b/c/src/lib/libcpu/arm/pxa255/ffuart/ffuart.c
@@ -25,7 +25,7 @@ volatile int dbg_dly;
 static int     ffuart_first_open(int major, int minor, void *arg);
 static int     ffuart_last_close(int major, int minor, void *arg);
 static int     ffuart_read(int minor);
-static int     ffuart_write(int minor, const char *buf, int len);
+static ssize_t ffuart_write(int minor, const char *buf, size_t len);
 static void    ffuart_init(int minor);
 static void    ffuart_write_polled(int minor, char c);
 static int     ffuart_set_attributes(int minor, const struct termios *t);
@@ -102,9 +102,9 @@ static int ffuart_read(int minor)
  *
  * return 1 on success, -1 on error
  */
-static int ffuart_write(int minor, const char *buf, int len)
+static ssize_t ffuart_write(int minor, const char *buf, size_t len)
 {
-    int i, x;
+    size_t i, x;
     char c;
     console_tbl *console_entry;
     ffuart_reg_t *ffuart;