diff --git a/platform/wismote/dev/acc-sensor.c b/platform/wismote/dev/acc-sensor.c
index 6817b7de6..15ea5fd82 100644
--- a/platform/wismote/dev/acc-sensor.c
+++ b/platform/wismote/dev/acc-sensor.c
@@ -26,14 +26,10 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $Id: acc-sensor.c,v 1.6 2010/01/14 20:01:18 nifi Exp $
- *
  * -----------------------------------------------------------------
  *
  * Author  : Adam Dunkels, Joakim Eriksson, Niclas Finne
  * Created : 2005-11-01
- * Updated : $Date: 2010/01/14 20:01:18 $
- *           $Revision: 1.6 $
  */
 
 #include "dev/acc-sensor.h"
@@ -101,15 +97,15 @@ value(int type)
 }
 /*---------------------------------------------------------------------------*/
 static int
-configure(int type, int c)
+configure(int type, int value)
 {
-  switch(type) {
-  case SENSORS_ACTIVE:
-    if (c) {
+  if(type == SENSORS_ACTIVE) {
+    if(value) {
       activate();
     } else {
       deactivate();
     }
+    return 1;
   }
   return 0;
 }
@@ -121,8 +117,9 @@ status(int type)
   case SENSORS_ACTIVE:
   case SENSORS_READY:
     return active;
+  default:
+    return 0;
   }
-  return 0;
 }
 /*---------------------------------------------------------------------------*/
 SENSORS_SENSOR(acc_sensor, ACC_SENSOR,
diff --git a/platform/wismote/dev/acc-sensor.h b/platform/wismote/dev/acc-sensor.h
index b10ae214a..89df783a8 100644
--- a/platform/wismote/dev/acc-sensor.h
+++ b/platform/wismote/dev/acc-sensor.h
@@ -26,14 +26,10 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $Id: acc-sensor.h,v 1.1 2009/01/15 21:06:02 adamdunkels Exp $
- *
  * -----------------------------------------------------------------
  *
  * Author  : Adam Dunkels, Joakim Eriksson, Niclas Finne
  * Created : 2005-11-01
- * Updated : $Date: 2009/01/15 21:06:02 $
- *           $Revision: 1.1 $
  */
 
 #ifndef __ACC_SENSOR_H__
diff --git a/platform/wismote/dev/button-sensor.c b/platform/wismote/dev/button-sensor.c
index 0456356ba..51bf38c2f 100644
--- a/platform/wismote/dev/button-sensor.c
+++ b/platform/wismote/dev/button-sensor.c
@@ -51,12 +51,10 @@ interrupt(PORT2_VECTOR)
 {
   ENERGEST_ON(ENERGEST_TYPE_IRQ);
 
-  if(BUTTON_CHECK_IRQ()) {
-    if(timer_expired(&debouncetimer)) {
-      timer_set(&debouncetimer, CLOCK_SECOND / 4);
-      sensors_changed(&button_sensor);
-      LPM4_EXIT;
-    }
+  if(BUTTON_CHECK_IRQ() && timer_expired(&debouncetimer)) {
+    timer_set(&debouncetimer, CLOCK_SECOND / 4);
+    sensors_changed(&button_sensor);
+    LPM4_EXIT;
   }
   P2IFG = 0x00;
   ENERGEST_OFF(ENERGEST_TYPE_IRQ);
@@ -69,11 +67,14 @@ value(int type)
 }
 /*---------------------------------------------------------------------------*/
 static int
-configure(int type, int c)
+configure(int type, int value)
 {
-  switch (type) {
-  case SENSORS_ACTIVE:
-    if (c) {
+  if(type == SENSORS_ACTIVE) {
+    if(value == 0) {
+      /* Deactivate button sensor */
+      BUTTON_DISABLE_IRQ();
+    } else {
+      /* Activate button sensor */
       if(!status(SENSORS_ACTIVE)) {
 	timer_set(&debouncetimer, 0);
 	BUTTON_IRQ_EDGE_SELECTD();
@@ -83,8 +84,6 @@ configure(int type, int c)
 
 	BUTTON_ENABLE_IRQ();
       }
-    } else {
-      BUTTON_DISABLE_IRQ();
     }
     return 1;
   }
@@ -94,12 +93,13 @@ configure(int type, int c)
 static int
 status(int type)
 {
-  switch (type) {
+  switch(type) {
   case SENSORS_ACTIVE:
   case SENSORS_READY:
     return BUTTON_IRQ_ENABLED();
+  default:
+    return 0;
   }
-  return 0;
 }
 /*---------------------------------------------------------------------------*/
 SENSORS_SENSOR(button_sensor, BUTTON_SENSOR,
diff --git a/platform/wismote/dev/ext-sensor.c b/platform/wismote/dev/ext-sensor.c
index 42a8e7ed1..a957e5232 100644
--- a/platform/wismote/dev/ext-sensor.c
+++ b/platform/wismote/dev/ext-sensor.c
@@ -26,15 +26,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $Id: ext-sensor.c,v 1.3 2010/02/13 11:20:48 joxe Exp $
- *
  * -----------------------------------------------------------------
  *
  * Author  : Adam Dunkels, Joakim Eriksson, Niclas Finne, Marcus Lundén,
  *           Jesper Karlsson
  * Created : 2005-11-01
- * Updated : $Date: 2010/02/13 11:20:48 $
- *           $Revision: 1.3 $
  */
 
 #include "contiki.h"
@@ -66,11 +62,12 @@ static int
 status(int type)
 {
   switch(type) {
-    case SENSORS_ACTIVE:
-    case SENSORS_READY:
-      return active;
+  case SENSORS_ACTIVE:
+  case SENSORS_READY:
+    return active;
+  default:
+    return 0;
   }
-  return 0;
 }
 /*---------------------------------------------------------------------------*/
 static int
@@ -97,8 +94,10 @@ configure(int type, int c)
         sky_sensors_deactivate(0x0F);
         active = 0;
       }
+      return 1;
+  default:
+    return 0;
   }
-  return 0;
 }
 /*---------------------------------------------------------------------------*/
 SENSORS_SENSOR(ext_sensor, "Ext",
diff --git a/platform/wismote/dev/ext-sensor.h b/platform/wismote/dev/ext-sensor.h
index 8fed8b59f..e9248144d 100644
--- a/platform/wismote/dev/ext-sensor.h
+++ b/platform/wismote/dev/ext-sensor.h
@@ -26,14 +26,10 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $Id: ext-sensor.h,v 1.2 2010/02/13 11:20:48 joxe Exp $
- *
  * -----------------------------------------------------------------
  *
  * Author  : Marcus Lundén
  * Created : 2005-11-01
- * Updated : $Date: 2010/02/13 11:20:48 $
- *           $Revision: 1.2 $
  */
 
 #ifndef __EXT_SENSOR_H__