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YAFI/README.md
Stephen Horvath 43de4d979d Release 1.0
2026-03-21 16:46:39 +10:00

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# Yet Another Framework Interface
YAFI is another GUI for the Framework Laptop Embedded Controller.
It is written in Python with a GTK4 Adwaita theme, and uses the [`CrOS_EC_Python`](https://github.com/Steve-Tech/CrOS_EC_Python) library to communicate with the EC.
It has support for fan control, temperature monitoring, LED control, and battery limiting.
## Installation
You can download the latest release from the [Releases page](https://github.com/Steve-Tech/YAFI/releases).
There are builds for Flatpak, and PyInstaller for portable execution on Linux or Windows.
YAFI is also available on [Flathub](https://flathub.org/en/apps/au.stevetech.yafi): `flatpak install flathub au.stevetech.yafi`.
### Linux
To allow YAFI to communicate with the EC, you will need to enable user access to the `/dev/cros_ec` device. You can do this by running `echo KERNEL==\"cros_ec\", TAG+=\"uaccess\" | sudo tee /etc/udev/rules.d/60-yafi.rules`, and then reload the rules with `sudo udevadm control --reload-rules && sudo udevadm trigger`.
You can also do this by running `curl -Lfs yafi.stevetech.au/udev.sh | sudo sh` which will run the [`add-udev-rules.sh`](add-udev-rules.sh) script.
### Windows
If your Laptop's BIOS supports Framework's EC driver, there is no need to install any third-party drivers. YAFI should also work without administrator privileges.
Otherwise, YAFI supports the [PawnIO](https://pawnio.eu/) driver, and will be automatically used if installed and there is no Framework driver available. YAFI will need to be run as administrator to communicate with the driver.
## Building
### Flatpak
Build and install the Flatpak package with `flatpak-builder --install --user build au.stevetech.yafi.json`.
You can also create a flatpak bundle with `flatpak-builder --repo=repo build au.stevetech.yafi.json` and install it with `flatpak install --user repo au.stevetech.yafi.flatpak`.
### Pip
#### System Dependencies
This project requires PyGObject, and the introspection data for GTK4 and Adwaita.
On Debian/Ubuntu, you can install these with:
```bash
sudo apt install python3-gi gir1.2-gtk-4.0 gir1.2-adw-1
```
#### Install
Install the package with `pip install yafi`.
Pipx is also supported.
### Windows
It is possible to run YAFI on Windows using [gvsbuild](https://github.com/wingtk/gvsbuild/) and installing YAFI via pip, but it can be complicated and is therefore not recommended.
## Screenshots
### Fan Control and Temperature Monitoring
![Thermals Page](docs/1-thermals.png)
### LED Control
![LEDs Page](docs/2-leds.png)
### Battery Statistics
![Battery Page](docs/3-battery.png)
### Battery Limiting
![Battery Limiter Page](docs/4-battery-limit.png)
#### Battery Extender
![Battery Extender](docs/4a-battery-ext.png)
### Hardware Info
![Hardware Page](docs/5-hardware.png)
## Troubleshooting
### `[Errno 13] Permission denied: '/dev/cros_ec'`
This error occurs when the udev rules are not installed or not working. Make sure you have installed the udev rules as described in the [Linux Installation](#linux) section.
### `Could not auto detect device, check you have the required permissions, or specify manually.`
This error occurs when `/dev/cros_ec` is not found, and the `CrOS_EC_Python` library also cannot talk over LPC.
You can either update your kernel to have a working `cros_ec_dev` driver, or run YAFI as root.
It can also occur if you do not have a CrOS EC, like on non Framework laptops.
## Disclaimer
YAFI is not affiliated with Framework Computer Inc. in any way.
YAFI is licensed under the [GPL-2.0-or-later license](COPYING), and comes with no warranty or guarantee of any kind. Use at your own risk.