wiringPi: Add udev rules to correct /dev/gpiomem permission

Signed-off-by: Yang Deokgyu <secugyu@gmail.com>

build

@@ -43,7 +43,36 @@ check_make_ok() {
   fi
 }
 
+configure_gpiomem() {
+  GPIOMEM="/dev/gpiomem"
+
+  if [ -z $1 ] && [ "$(stat -c "%a %G" "$GPIOMEM")" != "660"*"odroid" ]; then
+    case "$(echo $hardware | tr [:upper:] [:lower:])" in
+      *xu4)
+        $sudo cp -f udev/rules.d/99-odroid-wiringpi-exynos.rules /etc/udev/rules.d/
+        ;;
+      *c1|*c2|*n2)
+        $sudo cp -f udev/rules.d/99-odroid-wiringpi-aml.rules /etc/udev/rules.d/
+        ;;
+      *)
+        echo "This system seems not ODROID"
+        ;;
+    esac
+
+    echo "Reload udev..."
+    [ -x "$(command -v udevadm)" ] \
+      && $sudo udevadm trigger \
+      || echo "udevadm not found. Please reboot to take effect"
+  elif [ "$1" = "uninstall" ]; then
+    $sudo rm -f /etc/udev/rules.d/99-odroid-wiringpi-*
+  else
+    echo "Not found $GPIOMEM"
+    echo "You will not be able to use WiringPi without root permission"
+  fi
+}
+
 sudo=${WIRINGPI_SUDO-sudo}
+hardware=$(fgrep Hardware /proc/cpuinfo | head -1 | awk '{ printf("%s %s %s\n", $3, $4, $5) }' | xargs)
 
 if [ x$1 = "xclean" ]; then
   cd wiringPi
@@ -74,6 +103,9 @@ if [ x$1 = "xuninstall" ]; then
   echo -n "DevLib:   " ; $sudo make uninstall
   cd ../gpio
   echo -n "gpio:     " ; $sudo make uninstall
+  cd ..
+  echo -n "Deconfigure /dev/gpiomem" ; configure_gpiomem uninstall
+  echo
   exit
 fi
 
@@ -104,7 +136,6 @@ fi
   echo "====================="
   echo
 
-  hardware=`fgrep Hardware /proc/cpuinfo | head -1 | awk '{ print $3 }'`
 
 #  if [ x$hardware != "xBCM2708" ]; then
 #    echo ""
@@ -160,6 +191,11 @@ fi
   $sudo make install
   check_make_ok
 
+  echo
+  echo "Configure /dev/gpiomem"
+  cd ..
+  configure_gpiomem
+
 # echo
 # echo "wiringPi Daemon"
 # cd ../wiringPiD

debian/odroid-wiringpi.install

@@ -2,3 +2,4 @@ debian/tmp/usr/bin
 debian/tmp/usr/man	usr/share
 README.TXT		usr/share/doc/wiringpi
 People			usr/share/doc/wiringpi
+udev/rules.d		tmp/odroid-wiringpi

debian/odroid-wiringpi.postinst

@@ -0,0 +1,47 @@
+#!/bin/sh
+
+set -e
+
+msg() {
+	echo "odroid-wiringpi: $1"
+}
+
+case "$1" in
+	configure)
+		if [ -c "/dev/gpiomem" ] && [ "$(stat -c "%a %G" "/dev/gpiomem")" != "660"*"odroid" ]; then
+			hardware=$(fgrep Hardware /proc/cpuinfo | head -1 | awk '{ printf("%s %s %s\n", $3, $4, $5) }' | xargs)
+			case "$(echo $hardware | tr [:upper:] [:lower:])" in
+				*xu4)
+					cp -f /tmp/odroid-wiringpi/rules.d/99-odroid-wiringpi-exynos.rules /etc/udev/rules.d
+					;;
+				*c1|*c2|*n2)
+					cp -f /tmp/odroid-wiringpi/rules.d/99-odroid-wiringpi-aml.rules	/etc/udev/rules.d
+					;;
+				*)
+					msg "This system seems not ODROID"
+					;;
+			esac
+
+			msg "Reload udev..."
+			[ -x "$(command -v udevadm)" ] \
+				&& udevadm trigger \
+				|| msg "udevadm not found. Please reboot to take effect"
+		else
+			msg "Not found $GPIOMEM"
+			msg "You will not be able to use WiringPi without root permission"
+		fi
+
+		msg "Remove temporary files..."
+		rm -rf /tmp/odroid-wiringpi
+	;;
+
+	abort-upgrade|abort-remove|abort-deconfigure)
+	;;
+
+	*)
+		echo "postinst called with unknown argument \`$1'" >&2
+		exit 1
+	;;
+esac
+
+exit 0

debian/odroid-wiringpi.postrm

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+set -e
+
+case "$1" in
+	purge)
+		rm -f /etc/udev/rules.d/99-odroid-wiringpi-*
+	;;
+
+	remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+	;;
+
+	*)
+		echo "postrm called with unknown argument \`$1'" >&2
+		exit 1
+	;;
+esac
+
+exit 0

udev/rules.d/99-odroid-wiringpi-aml.rules

@@ -0,0 +1,2 @@
+# /dev/gpiomem
+SUBSYSTEM=="aml-gpiomem", GROUP="odroid", MODE="0660"

udev/rules.d/99-odroid-wiringpi-exynos.rules

@@ -0,0 +1,2 @@
+# /dev/gpiomem
+SUBSYSTEM=="exynos-gpiomem", GROUP="odroid", MODE="0660"