Linux I/O port programming mini-HOWTO

• Index
• Introduction
• Using I/O ports in C programs
• Interrupts (IRQs) and DMA access
• High-resolution timing
• Other programming languages
• Some useful ports
• Hints
• Troubleshooting
• Example code
• Credits

1. Introduction

This HOWTO document describes programming hardware I/O ports and waiting for small periods of time in user-mode Linux programs running on the Intel x86 architecture. This document is a descendant of the very small IO-Port mini-HOWTO by the same author.

This document is Copyright 1995-2000 Riku Saikkonen. See the Linux HOWTO copyright for details.

If you have corrections or something to add, feel free to e-mail me (Riku.Saikkonen@hut.fi)...