From b00eeb265e1210545b12c2a528052e1b547a27a7 Mon Sep 17 00:00:00 2001
From: Timo Wilken
Date: Sun, 22 Jan 2023 22:40:19 +0100
Subject: Make backlight udev rule more idiomatic

This doesn't seem to fix it, though. The backlight adjustment files
are still owned by root:root.
---
 tw/system/lap.scm | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

(limited to 'tw')

diff --git a/tw/system/lap.scm b/tw/system/lap.scm
index 2cdfb9c9..29d59843 100644
--- a/tw/system/lap.scm
+++ b/tw/system/lap.scm
@@ -43,10 +43,8 @@
   ;; https://github.com/haikarainen/light/blob/master/90-backlight.rules
   ;; https://github.com/Hummer12007/brightnessctl/blob/master/90-brightnessctl.rules
   (udev-rule "90-backlight.rules" "\
-ACTION==\"add\", SUBSYSTEM==\"backlight\", RUN+=\"/usr/bin/env chgrp video /sys/class/backlight/%k/brightness\"
-ACTION==\"add\", SUBSYSTEM==\"backlight\", RUN+=\"/usr/bin/env chmod g+w /sys/class/backlight/%k/brightness\"
-ACTION==\"add\", SUBSYSTEM==\"leds\", RUN+=\"/usr/bin/env chgrp video /sys/class/leds/%k/brightness\"
-ACTION==\"add\", SUBSYSTEM==\"leds\", RUN+=\"/usr/bin/env chmod g+w /sys/class/leds/%k/brightness\"
+ACTION!=\"remove\", SUBSYSTEM==\"backlight\", GROUP=\"video\", MODE=\"0664\"
+ACTION!=\"remove\", SUBSYSTEM==\"leds\", GROUP=\"video\", MODE=\"0664\"
 "))
 
 ;; This text is added verbatim to the Xorg config file.
-- 
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