85 lines
2.2 KiB
Markdown
85 lines
2.2 KiB
Markdown
# acer-lighting
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**Thanks**
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This project benefited greatly from the work, testing and research of several community contributors — especially: @ZoeBattleSand, @0x189D7997, and @JakeBrxwn. Their reverse-engineering, testing, tooling and discussion (see https://github.com/0x7375646F/Linuwu-Sense/pull/65) made much of this possible.
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Small tools to control Acer laptop RGB zones and a daemon that persists/apply states.
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## Build
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- Build the daemon only:
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```sh
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make acer-rgbd
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```
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- Build the CLI (used for manual commands and test targets):
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```sh
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make acer-rgb-cli
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```
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Or build everything with:
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```sh
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make build
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```
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## Install
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Install the daemon, helper script and systemd units:
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```sh
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sudo make install
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```
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The `install` target will:
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- Copy `acer-rgbd` to `/usr/local/bin/acer-rgbd` and `acer-rgb` to `/usr/local/bin/acer-rgb`.
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- Install systemd unit and socket under `/etc/systemd/system/` and enable/start the service.
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- Create `/var/lib/acer-rgbd/state.txt` with an initial "all green" state so the daemon applies green on first start.
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If you need to undo the install:
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```sh
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sudo make uninstall
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```
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## Usage
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- Send commands to the daemon using the `acer-rgb` helper (it talks to the daemon socket):
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```sh
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acer-rgb SET dev=keyboard hidraw=/dev/hidraw2 effect=static bright=100 r=0 g=255 b=0 zone=all
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acer-rgb GET
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```
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- You can also use the CLI binary for direct HID control (for testing):
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```sh
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sudo ./acer-rgb-cli /dev/hidraw2 keyboard static --brightness 100 --rgb 0 255 0 --zone all
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```
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## State file
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The daemon persists three lines (keyboard, lid, button) in `/var/lib/acer-rgbd/state.txt`. Editing that file (as root) changes the values the daemon will reapply on start.
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## Logs & troubleshooting
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View the daemon logs with:
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```sh
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journalctl -u acer-rgbd.service -f
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```
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If you modify the state file and want the daemon to reapply immediately, restart it:
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```sh
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sudo systemctl restart acer-rgbd.service
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```
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## Notes
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- The installer writes an initial all-green state (keyboard/lid/button) to `/var/lib/acer-rgbd/state.txt` so newly installed systems show green LEDs by default.
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- Running the daemon requires root privileges (or appropriate udev rules) to access the HID device.
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