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Diffstat (limited to 'README.md')
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@@ -10,19 +10,17 @@ The program is available in: * [Fedora/EPEL](https://apps.fedoraproject.org/packages/brightnessctl) * [Arch Linux (AUR)](https://aur.archlinux.org/packages/brightnessctl) +One can build and install the program using `make install`. Consult the Makefile for relevant build-time options. + ## Permissions -Modifying brightness requires write permissions for device files. This can be accomplished (without using sudo/su/etc.) by either of the following means: +Modifying brightness requires write permissions for device files. `brightnessctl` accomplishes this (without using `sudo`/`su`/etc.) by either of the following means: -1) installing brightnessctl as a suid binary (done by default) +1) installing `brightnessctl` as a suid binary (done by default) -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" -ACTION=="add", SUBSYSTEM=="backlight", RUN+="/bin/chmod g+w /sys/class/backlight/%k/brightness" -ACTION=="add", SUBSYSTEM=="leds", RUN+="/bin/chgrp input /sys/class/leds/%k/brightness" -ACTION=="add", SUBSYSTEM=="leds", RUN+="/bin/chmod g+w /sys/class/leds/%k/brightness" -``` +2) installing relevant udev rules to add permissions to backlight class devices for users in `video` and leds for users in `input`. + +The behavior is controlled by the `INSTALL_UDEV_RULES` flag (setting it to `1` installs the udev rules, `0` is the default value). ## Usage ``` |