I2c platform driver. .

I2c platform driver. The driver responsible for configuring and managing the I²C controller is typically a platform driver, and the controller itself is a platform device. Feb 13, 2025 · This article explores the Linux I2C (Inter-Integrated Circuit), SMBus (System Management Bus), and platform subsystems, providing an overview of their architecture and implementation. Feb 28, 2024 · 本文主要详细介绍了I2C的知识，使用 linux platform驱动架构开发一个基于i2c接口的驱动程序，其中包括编写和更新设备树文件，搭建驱动架构，编写驱动代码和测试代码。. This requires a clean organization of the code, with the device drivers separated from the controller drivers, the hardware description separated from the drivers themselves, etc. An I2C “Adapter Driver” abstracts the controller hardware; it binds to a physical device (perhaps a PCI device or platform_device) and exposes a struct i2c_adapter representing each I2C bus segment it manages. Writing a platform driver that properly interfaces an I²C or SPI device through Device Tree bindings is a vital skill for embedded developers and kernel programmers, particularly in a world increasingly composed of headless, compact, and deeply embedded systems. Need for a single driver to support multiple devices of the same kind. If an I²C device does not fit into the standard I²C controller model, it may need to be implemented as a platform driver with customized behavior. pjco wfz vlkmhz aqsc nnfol ucomqail squx wsxm xenoyvp ynl