From 700e848e9aee508b09170f169961fe175869eac1 Mon Sep 17 00:00:00 2001
From: anthraxx <levente@leventepolyak.net>
Date: Wed, 26 Aug 2015 22:24:51 +0200
Subject: [PATCH] don't setup (export/unexport) gpio pins on execution

This fixes the issue that the new firmware recreates the whole
gpio file structure on unexport/export so the ownership of all
files is root:root and the gpio group is dropped.

Because of this all unexport is removed from the calling scripts
and a setup script is added that needs to be invoked once after
startup.
---
 lock   |  5 -----
 setup  | 16 ++++++++++++++++
 unlock |  5 -----
 3 files changed, 16 insertions(+), 10 deletions(-)
 create mode 100755 setup

diff --git a/lock b/lock
index 66d2537..5d7bbf2 100755
--- a/lock
+++ b/lock
@@ -2,12 +2,7 @@
 . $(dirname $(readlink "$0"))/shared
 
 echo "Initializing Space Systems..."
-echo "22" > /sys/class/gpio/unexport
-echo "22" > /sys/class/gpio/export
-sleep 0.5
 echo "Securing Communication to Space Systems..."
-echo "out" > /sys/class/gpio/gpio22/direction
-sleep 0.5
 echo "Open Communication Channel..."
 # Silent, Output to /dev/null, Timeout after 5s and retry 12 times, each doubling the waitingtime until ten minutes.
 nohup curl -s -o /dev/null -m 5 --connect-timeout 5 --retry 12 "https://hamburg.ccc.de/dooris/status.php?apikey=${password}&action=close" >/dev/null 2>&1 &
diff --git a/setup b/setup
new file mode 100755
index 0000000..3d2c579
--- /dev/null
+++ b/setup
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+echo "Setting up gpio: unlock"
+echo "27" > /sys/class/gpio/unexport
+echo "27" > /sys/class/gpio/export
+echo "out" > /sys/class/gpio/gpio27/direction
+chown -R root:gpio /sys/class/gpio/gpio27/*
+chmod g+w /sys/class/gpio/gpio27/*
+
+echo "Setting up gpio: lock"
+echo "27" > /sys/class/gpio/unexport
+echo "22" > /sys/class/gpio/unexport
+echo "22" > /sys/class/gpio/export
+echo "out" > /sys/class/gpio/gpio22/direction
+chown -R root:gpio /sys/class/gpio/gpio22/*
+chmod g+w /sys/class/gpio/gpio22/*
diff --git a/unlock b/unlock
index b5def6d..59177fc 100755
--- a/unlock
+++ b/unlock
@@ -2,12 +2,7 @@
 . $(dirname $(readlink "$0"))/shared
 
 echo "Initializing Space Systems..."
-echo "27" > /sys/class/gpio/unexport
-echo "27" > /sys/class/gpio/export
-sleep 0.5
 echo "Securing Communication to Space Systems..."
-echo "out" > /sys/class/gpio/gpio27/direction
-sleep 0.5
 echo "Open Communication Channel..."
 nohup curl -s -o /dev/null -m 5 --connect-timeout 5 --retry 12 "https://hamburg.ccc.de/dooris/status.php?apikey=${password}&action=open" >/dev/null 2>&1 &
 echo "Unlocking Space..."