platform driver

Embedded Systems Panorama 4: Understanding Driver Models and Device Trees

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Embedded Systems Panorama 4: Understanding Driver Models and Device Trees

In embedded Linux systems, drivers serve as the bridge between the kernel and hardware, while the Device Tree (DT) provides an abstraction for hardware information. Understanding the Linux driver model and device trees is crucial for embedded engineers to build a complete system from low-level hardware to user space. This article will gradually analyze the … Read more

Introduction to the Platform Device Driver Model

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Introduction to the Platform Device Driver Model

In the Linux kernel, the <span>platform</span> device driver model is used to manage devices that are not directly mounted on physical buses (such as PCI or USB), for example, hardware modules (such as GPIO controllers, timers, etc.) within a System on Chip (SoC). This model associates devices (<span>platform_device</span>) and drivers (<span>platform_driver</span>) through a virtual <span>platform_bus_type</span> … Read more