script to control relays driven as leds from device tree

diff --git a/relay.sh b/relay.sh
new file mode 100755 (executable)
index 0000000..1ab37cf
--- /dev/null
+++ b/relay.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+relay=$1
+state=$2
+
+current=$( cat /sys/class/leds/relay$relay/brightness )
+new=0
+if [ "$current" -eq "0" ] ; then
+       new=255
+else
+       new=0
+fi
+
+echo $new > /sys/class/leds/relay$relay/brightness
+
+grep . /sys/class/leds/relay*/brightness