diff --git a/lib/gpio/in b/lib/gpio/in
index d58957b..cd930fb 100755
--- a/lib/gpio/in
+++ b/lib/gpio/in
@@ -32,7 +32,7 @@ test -d /sys/class/gpio/gpio$1 || echo $1 > /sys/class/gpio/export;
 
 # [4] Set mode to OUT
 #========================================================#
-echo "in" > /sys/class/gpio/gpio$1/direction;
+icat /sys/class/gpio/gpio$1/direction | grep -v "in" && echo "in" > /sys/class/gpio/gpio$1/direction;
 
 
 
diff --git a/lib/gpio/out b/lib/gpio/out
index c4b1948..27e47ce 100755
--- a/lib/gpio/out
+++ b/lib/gpio/out
@@ -32,7 +32,7 @@ test -d /sys/class/gpio/gpio$1 || echo $1 > /sys/class/gpio/export;
 
 # [4] Set mode to OUT
 #========================================================#
-echo "out" > /sys/class/gpio/gpio$1/direction;
+icat /sys/class/gpio/gpio$1/direction | grep -v "out" && echo "out" > /sys/class/gpio/gpio$1/direction;