2008•Microcomputer InformationRequires access

Design of device drivers based on interrupt under Linux

LU Fe

Abstract

Interrupt Processing is one of the kernel tasks in embedded Linux operating system.In order to improve application's efficiency,the key technology is how to make good use of interrupt in device drivers.This paper introduces the ARM Linux interrupt processing and studies the developing methods and technologies of device drivers and interrupt service program under Linux.At the same time,the author examples device driver of keyboards based on interrupt.

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Key concepts: Interrupt, Interrupt handler, Computer science, Operating system, Embedded system, Linux kernel, Key (lock), Microcontroller