Linux下基于I2C的电源管理芯片驱动设计  

Power Management Chip Drive Design Based on I2C Under Linux

作　　者：于海航[1] 杜刚[1] 石仁协[1] 

机构地区：[1]中国地质大学信息工程学院,北京100083

出　　处：《兵工自动化》2011年第6期78-80,90,共4页Ordnance Industry Automation

摘　　要：为了提高驱动运行效率,对Linux下内部集成电路(inter-integrated circuit,I2C)设备的电源管理芯片驱动进行设计。介绍I2C总线时序以及Linux内核中I2C总线所特有的体系结构,在分析Linux内核I2C总线驱动框架的基础上,结合具体的电源管理芯片AXP192,介绍了I2C设备驱动的实现方法。结果证明,该设计能有效地提高效率。In order to improve the drive running efficiency,Design the power management chip drive of I2C（inter-integrated circuit） under Linux.The I2C bus timing and the special architecture of the I2C bus in the Linux kernel are introduced.On the basis of analysis Linux kernel I2c bus drive architecture,combine power management chip AXP192,introduce its realization method of I2C equipment drive.The result shows that the design can improve the efficiency effectively.

关 键 词：I2C总线 LINUX 电源管理芯片 驱动 

分 类 号：TP303.3[自动化与计算机技术—计算机系统结构]