- avoid annoying console messages when /dev/dbox/oled0 not exists

package/neutrino/files/start_neutrino.armbox

@@ -1,6 +1,7 @@
 #!/bin/sh
 
 . /etc/init.d/globals
+. /etc/init.d/functions
 
 # Neutrino's exit codes
 ERROR=-1
@@ -20,12 +21,12 @@ do_cleanup() {
 }
 
 do_shutdown() {
-	echo "Shutdown ..." > /dev/dbox/oled0
+	display_msg "Shutdown ..."
 	poweroff
 }
 
 do_reboot() {
-	echo "Reboot ..." > /dev/dbox/oled0
+	display_msg "Reboot ..."
 	reboot
 }
 
@@ -52,7 +53,7 @@ while true; do
 		break
 	fi
 
-	echo "Neutrino: $RET" > /dev/dbox/oled0
+	display_msg "Neutrino: $RET"
 
 	# report errors on external display
 	if [ -e /tmp/.lcd-* ]; then

package/sysvinit/files/rcS-hd5x

@@ -89,7 +89,7 @@ service network start
 service ntpdate start
 
 # say hi to everyone
-echo "Booting... NI" > /dev/dbox/oled0
+display_msg "Booting... NI"
 
 # trap CTRL-C only in this shell so we can interrupt subprocesses
 trap ":" INT QUIT TSTP

package/sysvinit/files/rcS-hd6x

@@ -89,7 +89,7 @@ service network start
 service ntpdate start
 
 # say hi to everyone
-echo "Booting... NI" > /dev/dbox/oled0
+display_msg "Booting... NI"
 
 # trap CTRL-C only in this shell so we can interrupt subprocesses
 trap ":" INT QUIT TSTP

package/sysvinit/files/rcS-vuduo

@@ -84,7 +84,7 @@ service network start
 service ntpdate start
 
 # say hi to everyone
-echo "Booting... NI" > /dev/dbox/oled0
+display_msg "Booting... NI"
 
 # trap CTRL-C only in this shell so we can interrupt subprocesses
 trap ":" INT QUIT TSTP

skel-root/general/scripts/init.functions

@@ -71,6 +71,14 @@ load_module()
 	fi
 }
 
+display_msg()
+{
+	msg="$*"
+	if [ -e /dev/dbox/oled0 ]; then
+		echo "${msg}" > /dev/dbox/oled0
+	fi
+}
+
 get_setting()
 {
 	test -e $NEUTRINO_CONF && grep "^${1}=" $NEUTRINO_CONF | cut -d'=' -f2