[ 导读] 本文通过阅读内核代码，来梳理一下I2C子系统的整体视图。在开发I2C设备驱动程序时，往往缺乏对于系统整体的认识，没有一个清晰的思路。所以从高层级来分析一下I2C系统的设计思路，将有助于设计调试具体的驱动程序。 非常抱歉，有两张图放错了 ...

In my last column [LJ, December 2003], we discussed how I2C bus drivers and I2C algorithm drivers work. We also described how to make a tiny dummy I2C bus driver. This month, we discuss how an I2C ...

以前已经发过I2C的文章，但是是三篇分开的，而且原文有诸多错误和格式问题，现在更正了一些错误，同时调整了格式，去掉了图片水印。 本文基于三星Cortex-A9架构，Exynos4412讲解I2C原理、以及基于I2C的mpu6050陀螺仪的数据读取实例（包括在裸机模式下数据的读取 ...

Editor's Note: Embedded Linux has consistently ranked among the top operating systems used in embedded system design. With the rapid growth in interest in the Internet of Things (IoT), the ability of ...