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script to control relays driven as leds from device tree
master
author
Dobrica Pavlinusic
<dpavlin@rot13.org>
Tue, 2 Jul 2019 14:18:57 +0000
(16:18 +0200)
committer
Dobrica Pavlinusic
<dpavlin@rot13.org>
Tue, 2 Jul 2019 14:18:57 +0000
(16:18 +0200)
relay.sh
[new file with mode: 0755]
patch
|
blob
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