Next OSADL Events:
|
Breaking News:
2010-02-08 12:00
Prof Eben Moglen on "GNU GPL Version 3: The Law Making Process"
International Conference on Commons, Users, Service Providers Internet (Self-)Regulation and Copyright
2009-11-23 12:00
Added a new HOWTO to the OSADL Website: Use BuildRoot to create a Linux image for QEMU
Guest Editor Bogdan Cristea tells us about rapid prototyping of an embedded system using virtualization
2009-11-19 12:00
Meet OSADL and many of its members at the SPS/IPC/Drives 2009
Open Source and Linux in Automation - the collaborative environment we always wished we had
2009-11-18 12:00
SERCOS III middleware library available as Open Source
Download the Common SERCOS Master API from the Internet
2009-10-21 12:00
Will we always wake up in time?
The Linux real-time kernel now contains a wakeup latency recorder to continuously monitor the real-time capabilities of a computer system |
OSADL Project: Userspace Driver
Project Goal
Provide a generic framework for handling devices in userspace. The device driver is split into a small kernel part, which contains the device setup and the primary interrupt handling, and a user space part, which handles the device functionality.
UIO was originally part of the OSADL project "Universal Fieldbus and Industrial I/O Framework" and represents one of its kernel interfaces.
This HOWTO is part of the Linux kernel documentation.
Code
Since kernel version 2.6.23 (commit), UIO kernel component is part of the mainline Linux Kernel. This LWN article gives some more details on it.
The mainline Linux kernel contains a number of UIO user-space drivers that can be used as a template when writing such drivers, e.g.
uio_cif.c | UIO Hilscher CIF card driver |
uio_sercos3.c | UIO driver for the Automata Sercos III PCI card |