Platform devices are devices that typically appear as autonomous entities in the system. This includes legacy port-based devices and host bridges to peripheral buses, and most controllers …

Jun 21, 2011 · "Platform devices" have long been used in this role in the kernel. This article will describe the interface for platform devices; it is meant as needed background material for a …

Canned release function freeing memory * allocated for the device allows drivers using such devices to be * unloaded without waiting for the last reference to the device to be * dropped. * …

Mar 13, 2025 · What Are Platform Devices? In the Linux kernel, Platform Devices refer to hardware components that cannot be discovered automatically at runtime. Unlike PCI or USB …

Mar 25, 2013 · To work with a particular platform device, you have to: register a platform driver that will manage this device. It should define a unique name, register your platform device, …

Apr 8, 2023 · Platform devices in the Linux kernel are devices that are hardware devices that are autonomous can be directly addressed by the CPU and they are not based on communication …

Dec 3, 2025 · In this blog, we’ll demystify normal device drivers and platform drivers, explore their key differences, and guide you on when to use each.

In this article, we show how to create a platform device driver in linux. A platform device driver is a driver which can handle the detection and configuration of a platform device.

Platform devices are given a name, used in driver binding, and a list of resources such as addresses and IRQs.

Think of a platform device as a way to describe hardware that isn't automatically discoverable, like peripherals integrated into a System-on-a-Chip (SoC). Unlike USB or PCI devices, the kernel …