Liangxu Linux
Jul 31, 2025 · Backend Development
How to Build and Test a Simulated GPIO Character Driver on Linux
This tutorial walks through creating a Linux kernel character driver that simulates four GPIO devices, compiles the module, loads it to automatically generate /dev/mygpio0‑3 nodes, and provides a user‑space program to control the GPIO states via ioctl, including full build and cleanup steps.
C#GPIOKernel Driver
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