嵌入式Ubuntu-Linux 2.6内核下的I2C驱动架构及应用

Architecture and Applications of I2c Driver in Embedded Ubuntu-Linux with Kernel Version 2.6

Ubuntu-Linux系统下的设备-核心-总线三层的I2C驱动架构,是合理、高效开发I2C设备驱动程序的重要参考框架。该文以结构化的视角深入分析了嵌入式Linux系统下I2C驱动的层次结构、数据结构、驱动流程等,并着重分析了2种设备层驱动方法,对I2C驱动开发具有普遍的适用性。

The device-core-bus three-layer architecture of I2C is the main reference framework to develop I2C device driver efficiently in Ubuntu-Linux system.We have analyzed the diver layers,data structures,driving procedures,and especially analyzed the driving procedures in device layer.The methods of developing and applying I2C driver that presented in this article are ubiquitous.