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ChibiOS/RT is a free and efficient RTOS designed for deeply embedded applications. It offers a comprehensive set of kernel primitives and supports many architectures: ARM7, Cortex-M0, Cortex-M3, Cortex-M4, PowerPC e200z, STM8, AVR, MSP430, ColdFire, H8S, x86.
FiwixOS 3 is a Fiwix distribution, an operating system made from a software collection that is based upon the Fiwix kernel. It basically comprises a Fiwix kernel, GNU tools, libraries and additional software. All the included software is free and open-source software made available both as compiled binaries and in source code form, which allows modifications to the original software.
FiwixOS 3 uses the Newlib v3.1.0 as its C standard library, and the Ext2 as its primary file...
XeNOS is a portable microkernel operating system written mostly in C++. Its primary goal is to provide a simple, object oriented device driver interface and API.
The Danja OS is part of the Danja project. It is operating system for x86, GBA, I/CP and Atmega16/32/644 computers.
Checkout the Documentation/Wiki for details.
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FreeOS/1 is a Free, Open Source, FreeDOS based Free and Open Source Alternative OS, with open source Microsoft Windows compatibility using HXDOSExtender KernelEx,and ReactOS source code. FreeOS/1 will include new technologies and will be easy to use
Modest is an LKM piece of code that allows users, running a user-space control application which interacts with kmodest char driver using ioctl() syscalls, to redirect I/O write() or writev() system calls to a second file descriptor at runtime.
K-OS is an open-source realtime-operating-system based on the OSEK/VDX standard aimed at compiler and microcontroller independence. Currently we support Motorola (Freescale) HC12/HCS12/HCS12X targets.
The aim of this project is to develop a modular operating system for the i386 architecture, where each device driver, file system, etc, will be a module that can be loaded and unloaded at run-time from the system.
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mDriver is a utility to migrate binary device driver from Windows to Linux. It takes out the binary instruction and data from Windows driver (*.sys files), and then combine them with some supporting code to build a corresponding Linux driver module.
The goal of this project is to develop an Operating System. It will have a NTFS style file system and use a Windows XP compatable hardware driver system. The main focus is to allow common executable formats (windows/unix/ELF).
POSIX API for Win2K-XP. Mainly implemented in the driver. Included: write-on-copy fork, threads, mutexes, spins, condvars, rwlocks, signals ... Signals/cancelation interrupt all waitable syscalls, NT syscalls are automaticaly restarted.
beetleOS is a small and flexible real time OS for embedded systems with preemptive multitasking. It also provides a lightweight device-driver framework. It is basically programmed for the ARM7 processor architecture but it could be ported to other archit