# hid

Published articles for hid.

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## GSoC 2026 Final Report | Modernizing Haiku's Bluetooth Stack: HID Profile Implementation

DevFeed: [GSoC 2026 Final Report | Modernizing Haiku's Bluetooth Stack: HID Profile Implementation](<https://devfeed.tech/articles/gsoc-2026-final-report-modernizing-haiku-s-bluetooth-stack-hid-profile-implementation-34781.md>)

Original publisher: [Read original article](<https://www.haiku-os.org/blog/mohammedrattia/2026-09-01_gsoc_2026_final_report/>)

Author: mohammedrattia

Published: 2026-09-06T12:00:24Z

Content type: article

Language: en

Sources: [Haiku Project](<https://devfeed.tech/sources/haiku-project.md>)

Topics: [Bluetooth](<https://devfeed.tech/topics/bluetooth.md>), [implementation](<https://devfeed.tech/topics/implementation.md>)

Tags: [bluetooth](<https://devfeed.tech/tags/bluetooth.md>), [drivers](<https://devfeed.tech/tags/drivers.md>), [gsoc](<https://devfeed.tech/tags/gsoc.md>), [gsoc2026](<https://devfeed.tech/tags/gsoc2026.md>), [haiku](<https://devfeed.tech/tags/haiku.md>), [hid](<https://devfeed.tech/tags/hid.md>), [implementation](<https://devfeed.tech/tags/implementation.md>), [input](<https://devfeed.tech/tags/input.md>), [report](<https://devfeed.tech/tags/report.md>), [software](<https://devfeed.tech/tags/software.md>)

### AI overview

This final GSoC 2026 report describes work to improve Haiku's Bluetooth stack and implement the HID profile. It reports that Bluetooth mice and keyboards are functioning and that the core stack is ready for additional profiles, while noting that Low Energy Bluetooth remains unimplemented and further work is needed.

### Source excerpt

Hello! Finally, GSoC is done for me. This is the final report for my project. The project was focused on improving the Bluetooth stack and making it useful. Hopefully, the Bluetooth stack is now in a much better state than before GSoC 2026. It still needs much work to be fully developed. However, currently Bluetooth mice and keyboards are functioning. In addition, the core of the stack is ready for implementing other profiles. This report will include the following: Project Overview What I Did Future Work Conclusion Project Overview The State of Bluetooth on Haiku Before GSoC 2026 Although the Bluetooth stack was outdated (based on version 2.0 and 2.1 of Bluetooth) before GSoC, it contained many core components that helped us focus less on starting from scratch and more on making the already built stack useful. However, that's true only for BR/EDR (Basic Rate / Enhanced Data Rate) Bluetooth, not Low Energy Bluetooth, which isn't implemented yet in Haiku. The BR/EDR Bluetooth core stack is divided into several core modules that provide services for the Bluetooth profiles, which in turn provide services to users like human interface devices, audio, file transfer, etc. Some of those core modules and their state in Haiku are: L2CAP: Functional, but needed some fixes. HCI (Host Controller Interface): Functional, but on an old Bluetooth version, as stated above. Transfer Layer (h2generic): Functional, but required further extension to cover vendor-specific devices. Preferences Application: Functional, but it lacked some features, such as changing the Bluetooth friendly name, canceling inquiry and pairing, and adding devices to a block list. Security Manager: Not complete; it's blended into the Bluetooth Server, and most of its functions were missing. Service Discovery Protocol (SDP): Not implemented. The state mentioned above meant the Bluetooth stack couldn't yet offer much practical functionality to users, because none of the Bluetooth profiles were implemented. In addi

## \[GSoC 2026\] Bluetooth: HCI Improvements & HID Profile | Haiku Project

DevFeed: [\[GSoC 2026\] Bluetooth: HCI Improvements & HID Profile | Haiku Project](<https://devfeed.tech/articles/gsoc-2026-bluetooth-hci-improvements-hid-profile-haiku-project-34779.md>)

Original publisher: [Read original article](<https://www.haiku-os.org/blog/mohammedrattia/2026-05-03_gsoc_2026_bluetooth_hci_improvements__hid_profile__haiku_project/>)

Author: mohammedrattia

Published: 2026-05-03T13:46:03Z

Content type: article

Language: en

Sources: [Haiku Project](<https://devfeed.tech/sources/haiku-project.md>)

Topics: [Bluetooth](<https://devfeed.tech/topics/bluetooth.md>), [Computer science](<https://devfeed.tech/topics/computer-science.md>), [Development](<https://devfeed.tech/topics/development.md>), [Software Engineering](<https://devfeed.tech/topics/software-engineering.md>), [Operating system](<https://devfeed.tech/topics/operating-system.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [bluetooth](<https://devfeed.tech/tags/bluetooth.md>), [computer-science](<https://devfeed.tech/tags/computer-science.md>), [google-summer-of-code](<https://devfeed.tech/tags/google-summer-of-code.md>), [gsoc](<https://devfeed.tech/tags/gsoc.md>), [gsoc2026](<https://devfeed.tech/tags/gsoc2026.md>), [haiku](<https://devfeed.tech/tags/haiku.md>), [hci](<https://devfeed.tech/tags/hci.md>), [hid](<https://devfeed.tech/tags/hid.md>), [improvements](<https://devfeed.tech/tags/improvements.md>), [profile](<https://devfeed.tech/tags/profile.md>), [programming](<https://devfeed.tech/tags/programming.md>), [project](<https://devfeed.tech/tags/project.md>), [software](<https://devfeed.tech/tags/software.md>), [software-engineer](<https://devfeed.tech/tags/software-engineer.md>), [software-engineering](<https://devfeed.tech/tags/software-engineering.md>), [systems](<https://devfeed.tech/tags/systems.md>)

### AI overview

A GSoC 2026 proposal for Haiku aims to modernize the operating system's Bluetooth stack and implement the Bluetooth HID profile. The planned work includes completing HCI commands, improving pairing and Link Key persistence, and handling disconnection and timeout events.

### Source excerpt

Hello! I'm Mohammed R. Attia, a 2nd-year Computer Science Student. I've been accepted into Google Summer of Code (GSoC) 2026 with Haiku, with my proposal titled "Modernizing Haiku's Bluetooth Stack: HCI Completion and HID Profile Implementation." About Me I consider myself a competitive programmer and a software engineer. I haven't decided on a specific specialization in software engineering just yet; rather, I'm interested in systems development and low-level programming. You can check my GitHub for more information about my latest projects. I go by the handle mohammedrattia in many places on the internet, so feel free to reach out :). How did I get here? I first learned about Haiku while searching for GSoC organizations to contribute to. It was my first time learning about a desktop operating system other than the famous trio: Windows, macOS, and Linux. So, I started by reading the GSoC guide and joining IRC. I remember that the process was smooth because the guide contained everything, and people on IRC were welcoming and supportive. Then, I started working towards building Haiku, and I got my first commit merged into Haiku after several days. Current Goals The main goal of my proposal in GSoC is to modernize the Bluetooth stack. Currently, the Bluetooth stack in Haiku can't communicate effectively with modern Bluetooth devices because of the outdated standards it uses. However, making the Bluetooth core perfectly align with modern standards won't benefit Haiku users because it would still need a Bluetooth Profile to perform a useful task. One of the most common uses of Bluetooth is Human Interface Devices (HID) (e.g., keyboards and mice). Accordingly, this project will build the HID Bluetooth profile to provide useful functionality for Haiku users. The following three sub-sections contain a brief specification for the goals of the project from my GSoC proposal. Modern HCI Event & Command Handling Build upon the recent SSP/EIR groundwork by implementing the remai