BlueZ

BlueZ is the official Linux Bluetooth protocol stack. It provides support for Bluetooth devices and networking, enabling Linux systems to connect to and interact with a wide range of Bluetooth-enabled hardware, such as mobile phones, headsets, keyboards, and mice. BlueZ is maintained by the Linux Kernel community and is a fundamental component of most Linux distributions.

The core functionality of BlueZ includes the management of Bluetooth adapters, device discovery, connection establishment, and the implementation of various Bluetooth profiles. These profiles define how different types of Bluetooth devices communicate and what services they can offer. Examples of commonly supported profiles include A2DP for audio streaming, HID for human interface devices, and SPP for serial port emulation.

BlueZ is composed of several components, including the Bluetooth daemon (bluetoothd), which handles low-level Bluetooth operations, and various user-space utilities and libraries that allow applications to interact with Bluetooth devices. It can be controlled through command-line tools like `bluetoothctl` or through graphical interfaces provided by desktop environments such as GNOME or KDE.

The development of BlueZ focuses on providing robust and secure Bluetooth connectivity for Linux users. It supports the latest Bluetooth specifications and aims to ensure compatibility with a broad spectrum of Bluetooth hardware. Its integration into the Linux kernel makes it a stable and efficient solution for Bluetooth communication on Linux systems.