Version v1.0

The AutumnOS Project

Originally started as a general OS research on r/osdev, AutumnOS has undergone a significant architectural pivot to meet the demands of modern mobile computing. To achieve maximum hardware compatibility, security, and a rich application ecosystem, the project has been rebuilt as a Linux-based Mobile Operating System. ​By transitioning from a custom microkernel approach to a highly optimized Linux kernel, AutumnOS now leverages advanced process management, robust networking stacks, and extensive driver support. Targeting RISC-V mobile platforms, AutumnOS aims to provide a seamless, open-source mobile experience that bridges the gap between lightweight hardware and handheld efficiency.

Technical information:

🗂 File system:

• initramfs
• ext2/3/4 filesystem

🌐 Connection:

• FIFO Pipe
• Unix Domain Socket
• eth0/VLAN/WLAN
• OpenSSL
• http support
• wget and curl
• dropbear sshd and iproute2 (ip addr, ip link set up, ip route)
• udhcpc
• Timezone data
• libjsip (SIP call)
• GitBrowser - a GitHub port
• Pull repo with git
• ca-certificates
• netsurf
• DNS setup (nameserver 8.8.8.8)
• OTA Software Update

🌄 Graphics:

• SDL and SDL2
• LVGL graphics library
• Allwinner G2D
• DRM accelerator with KMS
• libjpg, libpng, freetype
• AutumnGL (GLES 3.0 based)
• fbv, fbtest
• AutixSurf Display Server
• Cedrus

💽 Multimedia:

• Qt6 multimedia (alsa, ffmpeg, gstreamer)
• ffmpeg and ffplay video player and sound
• mpg123
• gst1/gstreamer
• Camera (USB/V4L2/UVC etc.)

🔊 Sound driver:

• Intel HD Audio/AC97
• alsa/pulseaudio

⚙️ External drivers:

• evdev/indev
• USB Gadget (Serial port)
• USB OHCI/XHCI/HID drivers
• PCI device
• HDMI and sun4i Resistive Touchscreen
• QEMU(Virtio)
• RTC
• Watchdog script(Software and hardware watchdog)
• Goldfish driver support
• Virtual framebuffer(fb0, fb1)
• GPIO reader
• E1000 & RTL8723ds

🗃 Libraries:

• BusyBox Tools (only boot scripts)
• AutumnSDK
• Autumn Core, HAL, API
• acoreutils (kmsg, kpanic, kassert, kbeat, kmap, ls, rm, cp, mkdir)

🎏 Userspace:

• AutumnOS CoreUtils Terminal
• nano for Buildroot terminal
• sudo wrapper (atmsu_root)
• Resource managing
• Multilanguage
• Multitasking
• live weather clock widget
• Theme manager (Coming soon)

📄 Logging/debugging:

• LVGL printf log output
• strace for memory access debug

🧮 Games:

• chocolate-doom
  
• LTris
  

👾 Coding:

• Python
  
• pip, python3
  

🗄 Package manager:

• Autumn Store
  
• insmod
  
• modprobe
  .

---

The schematic of how our OS works

---

   **The layered struct**
             |
             ¥
  Autumn UI/CoreUtils
  |
  ¥
  API (.so) -> Other APIs
                        |
                        ¥
                UDS Socket
                         |
              <----------|
           Core
             |
             ¥
        **HAL (.so)**
             |
             ¥
        Linux Kernel
             |
             ¥
         Hardware

---

and;

---

Boot schematic ramfs(Low battery status)-> Boot-> Drivers-> Core-> dlsym-> Subsystem-> UI-> CoreUtils

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Easter eggs

• Glitch panic (console will open when an a kernel panic occurs and it makes UI glitch!/only watchdog.sh panics!)
• Michael Scott on weather clock widget
• Gravity 0 (floating icons on home page)
• Kernel hacking (sysrq)
• AutumnOS Bare Idle Mode

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Compiling

To compile all image: make -j$(nproc). For improve compiling performance use make -j$(nproc)/2

Important! Carefully read the instructions: All Instructions

Buildroot version: Buildroot 2026.02-84-g088c3602fd-dirty
To pull this version:
git clone https://github.com/buildroot/buildroot.git -> cd buildroot -> git checkout 088c3602fd

LVGL Designer: EEZ Studio 0.26.2
EEZ Studio setup link: https://drive.google.com/file/d/1Nfeg9FtOeK48H4LRhqOBRV9haR9v_n8W/view?usp=sharing

To get Qt Creator: QT6 link
I bypassed -j9 for Qt6 (by BR2_JLEVEL)

WSL version: must be Ubuntu 22.04 LTS

Target architecture: RV64 (RISC-V 64bit)

CPU requirement: 256MB+

Supported SoC's: StarFive JH7110/JH7100, Allwinner D1, Canaan K230

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Interfaces and projects inspired me

• LG Optimus VU - early Optimus UI 3.0 (AutumnUI)

• Samsung Galaxy S1 swipe lockscreen

• Android 2.x

• Windows - BSOD (Glitch panic)

• Android Honeycomb (Autumn_HoloUI)

• HTC Lock Screen Incoming Call

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System screenshots:

Screenshots Directory

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For Non SoM(System On Module) chips:

• For Allwinner D1 SoC's: Customized generic Device Tree Blob for Allwinner D1 by ataberk320
  
• For Allwinner D1s SoC's: Allwinner D1s is out of support, for this SoC, use AutumnOS "Through" Edition

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Packages and userspace:

• AutumnSDK: App development and SDK environment for AutumnOS
  
• acoreutils: File operations and kmsg like functions. (BusyTools is removed from userspace)
  
• ASComposer: Our layer composer and drawer for AutixSurf.
  
• AutixSurf: Our SHM supported display server Documentation
  
• AutumnGL: GLES 3.0 based graphics engine. (Only StarFive JH71XX!)

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Freedom for developers

• Endless Life Policity: Developers can use source code (According to GPL-3.0) and write their own Custom ROM and port new features.
• Protected files: If you want to downgrade your AutumnOS version, your data will not be lost thanks to ping pong slot and User data partition on SD card.