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Modules
Every functionality in clight is achieved through a "module". An inter-modules dependencies system has been created ad-hoc to ease development of such modules.
This way, it does not matter modules' init calls sorting; moreover, each module can be easily disabled if not needed/desired.
By default Clight enables all its functions, fallbacking to disable them where they are not supported. This means that these features are all enabled by default:
- BRIGHTNESS: to make webcam captures and change screen backlight level to match ambient brightness
- KEYBOARD: to manage keyboard backlight based on ambient brightess
- DIMMER: to dim screen after a certain idle time
- GAMMA: to change screen temperature based on current time of day
- DPMS: to switch off screen after a certain idle time
- SCREEN: to compute screen-emitted brightness and compensate for it. Enabled by default only on AC
| Module | Xorg | Wayland | TTY |
|---|---|---|---|
| BRIGHTNESS | ✔ | ✔ | ✔ |
| KEYBOARD | ✔ | ✔ | ✔ |
| DIMMER | ✔ | ✔ | ✔ |
| GAMMA | ✔ | ✔ | ✔ |
| DPMS | ✔ | ✔ | ✔ |
| SCREEN | ✔ |
BRIGHTNESS, KEYBOARD and DIMMER are screen-server agnostic.
All these features can be turned off through cmdline and config file options.
Unfortunately on Wayland there is yet no standard protocol for gamma and dpms handling.
Consequently both DPMS and GAMMA require specific wayland protocols to be implemented by your compositor; give a look at clightd wiki pages: