From d7c15c5c7798ed4705e5c15b9e1fc83209b8519a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simon=20W=C3=B6rner?= <git@simon-woerner.de>
Date: Thu, 30 Mar 2017 17:09:04 +0200
Subject: [PATCH] set gpio direction

---
 V1/led.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/V1/led.sh b/V1/led.sh
index 45fade7..a0033e7 100755
--- a/V1/led.sh
+++ b/V1/led.sh
@@ -14,6 +14,12 @@ function unexport_port() {
   echo "${port}" > /sys/class/gpio/unexport
 }
 
+function set_direction() {
+  port="${1}"
+  value="${2}"
+  echo "${value}" > "/sys/class/gpio/gpio${port}/direction"
+}
+
 function set_value() {
   port="${1}"
   value="${2}"
@@ -34,6 +40,7 @@ trap 'unexport_port "${GPIO_PORT}"' EXIT
 
 # init GPIO port
 export_port "${GPIO_PORT}"
+set_direction "${GPIO_PORT}" "out"
 
 # loop led on/off
 while true; do