diff options
| author |  Antoine Damhet <antoine.damhet@lse.epita.fr> | 2019-09-10 00:24:05 +0200 |
|---|---|---|
| committer |  Hummer12007 <hilobakho@gmail.com> | 2019-09-19 13:21:27 +0300 |
| commit | 99c21787cbbbde7ca1eb57abc8e7e3b3101eeb6d (patch) | |
| tree | 5cd1900315b581201d47a8dca6aaee19a88b4785 /README.md | |
| parent | 4500f760d4f847bc29d4b85e77d6d7c2a228f9d4 (diff) | |
Support the new `SetBrightness` logind API
This API from `org.freedesktop.login1.Session` allows an unprivileged
user with an active session to change its own backlight.
Systemd >= v243 is needed.
Signed-off-by: Antoine Damhet <antoine.damhet@lse.epita.fr>
Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 6 |
1 files changed, 5 insertions, 1 deletions
@@ -18,14 +18,18 @@ One can build and install the program using `make install`. Consult the Makefile ## Permissions -Modifying brightness requires write permissions for device files. `brightnessctl` accomplishes this (without using `sudo`/`su`/etc.) by either of the following means: +Modifying brightness requires write permissions for device files or systemd support. `brightnessctl` accomplishes this (without using `sudo`/`su`/etc.) by either of the following means: 1) installing relevant udev rules to add permissions to backlight class devices for users in `video` and leds for users in `input`. (done by default) 2) installing `brightnessctl` as a suid binary. +3) using the `systemd-logind` API. + The behavior is controlled by the `INSTALL_UDEV_RULES` flag (setting it to `1` installs the udev rules, it is the default value). +The systemd support (since v243) is controlled by the `ENABLE_SYSTEMD` flag (in that case it is recommended to set `INSTALL_UDEV_RULES` to 0). + ## Usage ``` Usage: brightnessctl [options] [operation] [value] |