linux i2c驱动架构
时间: 2024-01-27 13:04:28 浏览: 98
Linux i2c驱动架构包括以下几个部分:
1. i2c总线驱动:负责i2c总线的初始化、传输数据等操作;
2. i2c设备驱动:负责管理i2c设备,包括设备的注册、卸载、读写等操作;
3. i2c核心框架:提供i2c总线驱动和i2c设备驱动之间的接口,负责管理i2c总线和i2c设备之间的通信;
4. i2c算法驱动:负责实现i2c协议的各种算法,如SMBus、I2C Bit-Banging等。
在Linux中,i2c总线驱动和i2c设备驱动都是通过i2c核心框架进行连接和管理的。i2c总线驱动和i2c设备驱动都要注册到i2c核心框架中,以便i2c核心框架能够正确地管理它们之间的通信。当i2c设备需要进行读写操作时,i2c核心框架会调用i2c总线驱动来进行数据传输,然后i2c总线驱动会调用i2c设备驱动来进行数据读写操作。
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