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authorGravatar Hummer12007 <hilobakho@gmail.com>2017-01-17 01:46:25 +0200
committerGravatar GitHub <noreply@github.com>2017-01-17 01:46:25 +0200
commit01038cd7da9e73556550fdbccea0d1cde943efd9 (patch)
treeb4fb99173ba84e139a44f44b8d62bc91467da341 /README.md
parentde56ea2af5b628d96c1d576529ffb8e40f47b9df (diff)
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## Permissions
Modifying brightness requires write permissions for device files. This can be accomplished (without using sudo/su/etc.) by either of the following means:
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1) installing brightnessctl as a suid binary (done by default)
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2) adding a similar udev rule (assuming your user is in `video` group for backlight and `input` group for leds):
```
ACTION=="add", SUBSYSTEM=="backlight", RUN+="/bin/chgrp video /sys/class/backlight/%k/brightness"