diff --git a/boards/arduino-due/board.c b/boards/arduino-due/board.c
index 9d116a371aa59a94b7f19e72ba9822c859a463e2..b19ed2c5802983fd513afaa8c2ef494bbfe90747 100644
--- a/boards/arduino-due/board.c
+++ b/boards/arduino-due/board.c
@@ -27,5 +27,5 @@ void board_init(void)
     /* initialize the CPU */
     cpu_init();
     /* initialize the on-board Amber "L" LED @ pin PB27 */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
 }
diff --git a/boards/f4vi1/board.c b/boards/f4vi1/board.c
index 2f45e73d10a9dbae7e52eb3eaf68e25c48e3dc21..a390ca792ef4c33402e95a41d736877147993e15 100644
--- a/boards/f4vi1/board.c
+++ b/boards/f4vi1/board.c
@@ -25,9 +25,9 @@
 void board_init(void)
 {
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED1_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED2_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
+    gpio_init(LED1_PIN, GPIO_OUT);
+    gpio_init(LED2_PIN, GPIO_OUT);
 
     /* initialize the CPU */
     cpu_init();
diff --git a/boards/fox/board.c b/boards/fox/board.c
index 2e5164dfcb6cd581164a5195e90a034d5efd56f4..8b68b79863d30114f6a3f07819c7ddc68799830f 100644
--- a/boards/fox/board.c
+++ b/boards/fox/board.c
@@ -28,8 +28,8 @@ void board_init(void)
     cpu_init();
 
     /* initialize the boards LEDs and turn them off */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED1_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
+    gpio_init(LED1_PIN, GPIO_OUT);
     gpio_set(LED0_PIN);
     gpio_set(LED1_PIN);
 }
diff --git a/boards/frdm-k64f/board.c b/boards/frdm-k64f/board.c
index 021f033992d1922d95aa2d026663e4c3c88ef04a..c02590bffd306ebae3e423bcbedcdf92d43519f5 100644
--- a/boards/frdm-k64f/board.c
+++ b/boards/frdm-k64f/board.c
@@ -28,9 +28,9 @@ void board_init(void)
     cpu_init();
 
     /* initialize and turn off the on-board RGB-LED */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED1_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED2_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
+    gpio_init(LED1_PIN, GPIO_OUT);
+    gpio_init(LED2_PIN, GPIO_OUT);
     gpio_set(LED0_PIN);
     gpio_set(LED1_PIN);
     gpio_set(LED2_PIN);
diff --git a/boards/iotlab-m3/board.c b/boards/iotlab-m3/board.c
index b2a112507258b17451d90d6c8698e19c8b81bbe0..0c4bba1fed71aee03b4f981af86c62e5b6074051 100644
--- a/boards/iotlab-m3/board.c
+++ b/boards/iotlab-m3/board.c
@@ -27,9 +27,9 @@ void board_init(void)
     cpu_init();
 
     /* initialize the boards LEDs and turn them off */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED1_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED2_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
+    gpio_init(LED1_PIN, GPIO_OUT);
+    gpio_init(LED2_PIN, GPIO_OUT);
     gpio_set(LED0_PIN);
     gpio_set(LED1_PIN);
     gpio_set(LED2_PIN);
diff --git a/boards/limifrog-v1/board.c b/boards/limifrog-v1/board.c
index 51840ae8e7a9b9d964b4bab030f839d9f07e7a61..ac52819c419cbd6120865a981057ee5752d83273 100644
--- a/boards/limifrog-v1/board.c
+++ b/boards/limifrog-v1/board.c
@@ -25,7 +25,7 @@
 void board_init(void)
 {
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
     /* initialize the CPU */
     cpu_init();
 }
diff --git a/boards/nrf51dongle/board.c b/boards/nrf51dongle/board.c
index 3e20f2293fdbfeaacdc89c6794e63ab1f2700d5b..18ceac0864e647e237060d6652a041ab040e7e31 100644
--- a/boards/nrf51dongle/board.c
+++ b/boards/nrf51dongle/board.c
@@ -24,9 +24,9 @@
 void board_init(void)
 {
     /* initialize the boards LEDs, set pins as output and turn LEDs off */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED1_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED2_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
+    gpio_init(LED1_PIN, GPIO_OUT);
+    gpio_init(LED2_PIN, GPIO_OUT);
 
     /* initialize the CPU */
     cpu_init();
diff --git a/boards/nucleo-f091/board.c b/boards/nucleo-f091/board.c
index 78fb5f7164f7273564afb9179b8e35d1b3000cbf..a8d59f8929fae69fe03dea6b4a2b93234bb549c7 100644
--- a/boards/nucleo-f091/board.c
+++ b/boards/nucleo-f091/board.c
@@ -27,5 +27,5 @@ void board_init(void)
     cpu_init();
 
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
 }
diff --git a/boards/nucleo-f103/board.c b/boards/nucleo-f103/board.c
index c798005189148c9558bdf52dca52af50f4350c1b..1e2820e373766f23c8f2287cd9e4d833c0719253 100644
--- a/boards/nucleo-f103/board.c
+++ b/boards/nucleo-f103/board.c
@@ -27,5 +27,5 @@ void board_init(void)
     cpu_init();
 
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
 }
diff --git a/boards/nucleo-f303/board.c b/boards/nucleo-f303/board.c
index 5c01d7852ac875d6fd408f75b2986ae5ce719d4d..d291b0e2a3ebad64b47150cb34bcdc1bf3e1cde7 100755
--- a/boards/nucleo-f303/board.c
+++ b/boards/nucleo-f303/board.c
@@ -27,5 +27,5 @@ void board_init(void)
     cpu_init();
 
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
 }
diff --git a/boards/nucleo-f334/board.c b/boards/nucleo-f334/board.c
index 650a762500c156ebca8b71b354340252a25adcf8..bb320d3f9cf853001e9145f17bd87935ea6aa2aa 100644
--- a/boards/nucleo-f334/board.c
+++ b/boards/nucleo-f334/board.c
@@ -27,5 +27,5 @@ void board_init(void)
     cpu_init();
 
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
 }
diff --git a/boards/nucleo-f401/board.c b/boards/nucleo-f401/board.c
index d1ca7f4fbc3fabcc384d12c4a2d64de1b63663e0..5459df139b574012c719ba7bec7c67b8a50c0796 100644
--- a/boards/nucleo-f401/board.c
+++ b/boards/nucleo-f401/board.c
@@ -27,5 +27,5 @@ void board_init(void)
     cpu_init();
 
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
 }
diff --git a/boards/nucleo-l1/board.c b/boards/nucleo-l1/board.c
index 89f78ade69471a302b7c823af1fc45ad9336372f..a26984467bce3ef1291115965963a565c664ec5f 100644
--- a/boards/nucleo-l1/board.c
+++ b/boards/nucleo-l1/board.c
@@ -27,5 +27,5 @@ void board_init(void)
     cpu_init();
 
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
 }
diff --git a/boards/openmote-cc2538/board.c b/boards/openmote-cc2538/board.c
index e036b4713ca7d08865b3ce8c423d086cac1ef093..71b532be2192373cd2a81d294e56e1f0ed7e7ade 100644
--- a/boards/openmote-cc2538/board.c
+++ b/boards/openmote-cc2538/board.c
@@ -24,10 +24,10 @@
 void board_init(void)
 {
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED1_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED2_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED3_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
+    gpio_init(LED1_PIN, GPIO_OUT);
+    gpio_init(LED2_PIN, GPIO_OUT);
+    gpio_init(LED3_PIN, GPIO_OUT);
 
     /* initialize the CPU */
     cpu_init();
diff --git a/boards/pba-d-01-kw2x/board.c b/boards/pba-d-01-kw2x/board.c
index a31e8d3c82186c544b3e826bbb29c251560a162d..0f025f032df773e464b368a5344aee03d997a4c7 100644
--- a/boards/pba-d-01-kw2x/board.c
+++ b/boards/pba-d-01-kw2x/board.c
@@ -26,9 +26,9 @@
 void board_init(void)
 {
     /* initialize the on-board LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED1_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED2_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
+    gpio_init(LED1_PIN, GPIO_OUT);
+    gpio_init(LED2_PIN, GPIO_OUT);
 
     /* initialize the CPU core */
     cpu_init();
diff --git a/boards/remote/board.c b/boards/remote/board.c
index 4627fcce7f93f3ff73a7aeb2a3d1940b6ce65ffa..010e8b0e66897307d224ed67225c7b199aafaaa9 100644
--- a/boards/remote/board.c
+++ b/boards/remote/board.c
@@ -28,9 +28,9 @@ static inline void rf_switch_init(void);
 void board_init(void)
 {
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED1_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED2_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
+    gpio_init(LED1_PIN, GPIO_OUT);
+    gpio_init(LED2_PIN, GPIO_OUT);
     /* initialize the CPU */
     cpu_init();
     /* initialize the 2.4GHz RF switch */
diff --git a/boards/samr21-xpro/board.c b/boards/samr21-xpro/board.c
index 3a492c8d297221cebf07a9b627dbf013fce50618..9c63ee27b358664c46db247e7c32897328b31f97 100644
--- a/boards/samr21-xpro/board.c
+++ b/boards/samr21-xpro/board.c
@@ -26,7 +26,7 @@
 void board_init(void)
 {
     /* initialize the on-board LED */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
 
     /* initialize the CPU */
     cpu_init();
diff --git a/boards/spark-core/board.c b/boards/spark-core/board.c
index b783065d43bfe4ba5674c033d56f0d0010111a01..111a53aa57f96633dc6d0185b173c5c754cd5745 100644
--- a/boards/spark-core/board.c
+++ b/boards/spark-core/board.c
@@ -25,10 +25,10 @@
 void board_init(void)
 {
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED1_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED2_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED3_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
+    gpio_init(LED1_PIN, GPIO_OUT);
+    gpio_init(LED2_PIN, GPIO_OUT);
+    gpio_init(LED3_PIN, GPIO_OUT);
     gpio_set(LED0_PIN);
     gpio_set(LED1_PIN);
     gpio_set(LED2_PIN);
diff --git a/boards/stm32f0discovery/board.c b/boards/stm32f0discovery/board.c
index ae47f3053b3a34da4f682122756159143139c5b3..64eea24f92a2a963164501aeed5c94b3050c70fc 100644
--- a/boards/stm32f0discovery/board.c
+++ b/boards/stm32f0discovery/board.c
@@ -24,8 +24,8 @@
 void board_init(void)
 {
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED1_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
+    gpio_init(LED1_PIN, GPIO_OUT);
 
     /* initialize the CPU */
     cpu_init();
diff --git a/boards/stm32f3discovery/board.c b/boards/stm32f3discovery/board.c
index eff388d18e0ba7823386f1403aa43658ece58890..4960cfaacc6de558ad9ca73a9a9e44888fe63b19 100644
--- a/boards/stm32f3discovery/board.c
+++ b/boards/stm32f3discovery/board.c
@@ -24,14 +24,14 @@
 void board_init(void)
 {
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED1_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED2_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED3_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED4_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED5_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED6_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED7_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
+    gpio_init(LED1_PIN, GPIO_OUT);
+    gpio_init(LED2_PIN, GPIO_OUT);
+    gpio_init(LED3_PIN, GPIO_OUT);
+    gpio_init(LED4_PIN, GPIO_OUT);
+    gpio_init(LED5_PIN, GPIO_OUT);
+    gpio_init(LED6_PIN, GPIO_OUT);
+    gpio_init(LED7_PIN, GPIO_OUT);
 
     /* initialize the CPU */
     cpu_init();
diff --git a/boards/stm32f4discovery/board.c b/boards/stm32f4discovery/board.c
index 5477cd1127d989f0069e5c63bf4f57a4ab7762a8..b06836cfbd0746e32a78831937b97ee1b27d38e9 100644
--- a/boards/stm32f4discovery/board.c
+++ b/boards/stm32f4discovery/board.c
@@ -24,10 +24,10 @@
 void board_init(void)
 {
     /* initialize the boards LEDs */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED1_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED2_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
-    gpio_init(LED3_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
+    gpio_init(LED1_PIN, GPIO_OUT);
+    gpio_init(LED2_PIN, GPIO_OUT);
+    gpio_init(LED3_PIN, GPIO_OUT);
 
     /* initialize the CPU */
     cpu_init();
diff --git a/boards/udoo/board.c b/boards/udoo/board.c
index 87eb99b9bf21e138831602ab3fcbe5a838d00e9c..e5298c6a4005960ea12150df0a5ee18d618bda1c 100644
--- a/boards/udoo/board.c
+++ b/boards/udoo/board.c
@@ -25,7 +25,7 @@
 void board_init(void)
 {
     /* initialize the on-board Amber "L" LED @ pin PB27 */
-    gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
+    gpio_init(LED0_PIN, GPIO_OUT);
     /* initialize the CPU */
     cpu_init();
 }