vasilito 0ab5ccd362 evdevd: v6.0 single-producer mode — consume Linux struct input_event
The v6.0 desktop plan replaces the dual-path input architecture
(inputd orbclient + evdevd bridge) with a single Linux evdev
producer. evdevd now reads from /scheme/input/evdev and relays
events as-is to its per-device queues.

Changes:
  - main.rs: InputConsumer opens /scheme/input/evdev (not
    /scheme/input/consumer). Reads 8-byte WireEvent records
    (u16 type, u16 code, i32 value) — matches Linux
    struct input_event (sans time fields, which evdevd's
    types::InputEvent::new adds).
  - main.rs: dispatch_evdev_event() replaces the orbclient
    EventOption translation logic. Events go straight to the
    scheme's queue.
  - main.rs: drop unused 'use size_of' and 'use orbclient' imports.
  - scheme.rs: new push_input_event(event_type, code, value)
    method. Routes events to the correct device (keyboard,
    mouse, or touchpad) based on event type/code. SYN_REPORT
    is broadcast to all devices so the libinput consumer sees
    a complete report.
  - scheme.rs: new queue_raw_event() helper for push_input_event.
  - main.rs: log message updated to 'v6.0 single-producer mode'.

The legacy feed_*() methods (orbclient -> evdev translation)
remain in scheme.rs for now, used by the existing unit tests
and as a fallback path. They will be removed in a follow-up
cleanup once /scheme/input/evdev is confirmed working in QEMU.

cargo check --target x86_64-unknown-redox: 0 errors, 26 warnings
(all warnings are in legacy translate.rs/feed_* methods that
are now unused but kept for backward compat).
2026-06-09 02:05:13 +03:00

Red Bear OS

Red Bear OS

A microkernel operating system written in Rust, derived from Redox OS

MIT x86_64 Status


What is Red Bear OS?

Red Bear OS is a general-purpose, Unix-like operating system with a microkernel architecture, written in Rust. It is a full fork of Redox OS, frozen at release 0.1.0, with added hardware support, filesystem drivers, and a KDE Plasma desktop path.

Goals:

  • AMD & Intel parity — first-class support for both platforms on bare metal
  • KDE Plasma desktop — Wayland-based desktop environment via the KWin compositor
  • Hardware GPU acceleration — AMD GPU (amdgpu) and Intel GPU drivers via redox-drm
  • Modern subsystems — USB, WiFi, Bluetooth, ext4, GRUB, D-Bus
  • Offline-first builds — reproducible from archived, BLAKE3-verified sources

Quick Start

Prerequisites

Linux x86_64 host with Rust nightly, QEMU, nasm, and standard build tools.
See the Redox Build Guide for full setup.

Build & Run

# Clone
git clone https://gitea.redbearos.org/vasilito/RedBear-OS.git
cd RedBear-OS

# Build and run the desktop target in QEMU
./scripts/run.sh --build

# Build a live ISO for bare metal
./scripts/build-iso.sh redbear-full

# Build the text-only recovery target
./scripts/run.sh --build --config redbear-mini

Repository Hosting

The canonical Red Bear OS Git server is Gitea at https://gitea.redbearos.org/vasilito/RedBear-OS.git. GitHub is not a Red Bear OS source of truth and must not be used for pushes, issues, releases, or project coordination.

Public Scripts

Script Purpose
scripts/run.sh Build and run in QEMU (-b to build, -c <config> for target)
scripts/build-iso.sh Build a live ISO for bare-metal boot
scripts/build-all-isos.sh Build all live ISO targets
scripts/network-boot.sh PXE network boot helper
scripts/dual-boot.sh Dual-boot installation helper

Config Targets

Target Type Description
redbear-full Desktop Wayland + KDE + GPU drivers + D-Bus services
redbear-mini Console Text-only recovery / install target
redbear-grub Console Text-only with GRUB boot manager

Current Status

Red Bear OS boots to a login prompt in QEMU with working wired networking, D-Bus system bus, hardware detection daemons, and filesystem support (RedoxFS, ext4, FAT).

Area Status
Boot (ACPI/x2APIC/SMP) Bare-metal proven
Userspace drivers (PCI, storage, net) Working in QEMU
D-Bus system bus + services Working (login1, PolicyKit, UDisks, UPower)
ext4 / FAT filesystems Compiles, installer-wired
POSIX gaps (relibc) 🚧 Bounded Wayland-facing support
DRM/KMS display drivers 🚧 AMD + Intel compile; HW validation pending
Wayland compositor 🚧 Bounded proof; Qt6/KF6 clients crash at init
KDE Plasma desktop 🔄 In progress (Qt6/KF6 compile; KWin/QML blocked)
WiFi / Bluetooth 📋 Planned (architected, implementation pending)

How It Works

Red Bear OS uses a userspace driver model — all drivers run as unprivileged daemons:

Kernel (microkernel)
  └── schemes: memory, irq, event, pipe, debug
        └── Driver daemons (userspace)
              ├── pcid        → PCI enumeration
              ├── e1000d      → Intel ethernet
              ├── xhcid       → USB controller
              └── vesad       → Display framebuffer

The kernel provides minimal services (memory, interrupts, IPC). Everything else — filesystems, networking, graphics, input — runs in userspace.

Documentation

Contributing

Red Bear OS uses a full fork model. Upstream Redox sources are frozen and archived. All custom work lives in local/:

local/
├── sources/     # Red Bear source forks (git repos, directly editable)
├── recipes/     # Custom packages (drivers, GPU, system)
├── docs/        # Integration and planning docs
└── scripts/     # Build, test, and release tooling

We welcome contributions made with or without AI assistance — we care about quality, not how the code was produced.

License

MIT — same as upstream Redox OS.

S
Description
RedBear Operating System, based on RedoxOS. Licenced under MIT license.
https://redbearos.org
Readme MIT 20 GiB
Languages
C 43.9%
C++ 23.5%
Makefile 7.3%
Python 3.7%
JavaScript 3.4%
Other 17.1%