Author: HuaQing vision embedded institute. The Linux device driver development "(08 and 09 sep TOP50) annual list of best-selling chapter 15, Linux the I2C bus and core, device drivers. The I2C bus use only the two root, SDA SCL signal will achieve the data interaction between equipment, greatly simplified the hardware resources and PCB wiring space take up. Therefore, the I2C bus is very widely used in EEPROM, real clock, small LCD equipment and CPU interface. Linux system defines the I2C drive system structure in Linux, system, the I2C driven by three parts, namely the I2C core, the I2C bus driver and the I2C device drivers. The three parts of the cooperation and formed very general, can vary adaptive the I2C framework. Section 6.1 the I2C system for Linux analyzed the structure, the explanation is 3 part of their respective functions and to each other. Section 6.2 to Linux

第15章、Linux的I2C核心、总线与设备驱动.pdf

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