Merge branch 'reform-standby' into 'main'

sbin/reform-standby: guard against script being called manually

See merge request reform/reform-tools!22

sbin/reform-standby

@@ -39,13 +39,13 @@ hantro_on() {
 
 kbd_backlight_off() {
   for d in /dev/hidraw*
-    do echo -en "xLITE0" > $d
+    do echo -en "xLITE0" > "$d"
   done
 }
 
 kbd_backlight_on() {
   for d in /dev/hidraw*
-    do echo -en "xLITE6" > $d
+    do echo -en "xLITE6" > "$d"
   done
 }
 
@@ -59,17 +59,28 @@ hid_unbind() {
   echo 0003:03EB:2042.0001 > /sys/bus/hid/drivers/hid-generic/unbind
 }
 
-if [[ $1 = "suspend" ]]; then
+case $1 in
+	suspend)
 		setup_wake
 		wifi_off
 		hantro_off
 		kbd_backlight_off
 		hid_unbind
-fi
-
-if [[ $1 = "resume" ]]; then
+		;;
+	resume)
 		kbd_backlight_on
 		wifi_on
 		hantro_on
 		hid_bind
-fi
+		;;
+	*)
+		echo "i.MX8MQ specific setup before suspend and after wakeup" >&2
+		echo "" >&2
+		echo "usage:" >&2
+		echo "    $0 [suspend|resume]" >&2
+		echo "" >&2
+		echo "This script is called by the reform-sleep.service systemd service." >&2
+		echo "Do not call this script manually from the terminal but use" >&2
+		echo "systemctl suspend instead." >&2
+		exit 1
+esac