# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [1.0.0] - 2025-01-13

### Added
- Initial release
- GPIO-based volume button detection for Lenovo IdeaPad Flex 5i Chromebook Gen 8
- Support for Volume Up and Volume Down buttons via GPIO pins 3 and 4
- Key repeat functionality (1 second hold delay, 200ms repeat interval)
- Systemd service for automatic startup
- Installation script for easy deployment
- Comprehensive README documentation
- MIT License

### Technical Details
- Python 3 implementation using gpiod and evdev libraries
- 10ms GPIO polling interval for responsive button detection
- Open Drain Low (ODL) logic handling
- Proper state machine for button press/hold/release detection
- Graceful shutdown handling with SIGINT/SIGTERM
- Virtual input device creation via uinput

### Compatibility
- Tested on Lenovo IdeaPad Flex 5i Chromebook Gen 8 (Taeko)
- Intel Core i3-1215U processor
- MrChromebox custom BIOS (version 2408.1)
- Arch Linux kernel 6.17.1
- Python 3.13.7
- libgpiod 2.2.2
- python-evdev 1.9.2