Linux Driver Development with Raspberry Pi - GPIO Interrupt Handling: LDD with Raspberry Pi #13

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What you'll learn

This course includes

8.3 hours of video
Certificate of completion
Access on mobile and TV

Summary

Keywords

linux device driver linux kernel programming gpio interrupt linux linux gpio irq raspberry pi gpio interrupt linux kernel interrupt handling top half bottom half interrupt linux interrupt tutorial gpio debouncing linux linux workqueue example linux kernel timer linux gpio descriptor api

Full Transcript

In this video, we explore GPIO interrupt handling in the Linux kernel using a Raspberry Pi. You’ll learn how GPIO interrupts work, how to handle button debouncing, and how Linux splits interrupt handling into Top Half and Bottom Half. We also compare the legacy GPIO API with the modern GPIO descriptor-based API, and demonstrate how to handle interrupts correctly inside a kernel module. Topics covered: * GPIO interrupt handling * IRQ registration and cleanup * Button debouncing using kernel timers * Top Half vs Bottom Half (workqueues) * Legacy GPIO API vs Descriptor API If you found this helpful, like the video and subscribe for more Linux kernel development tutorials. GitHub :- https://github.com/madhawapolkotuwa/linux_driver_development_with_raspberrypi Buy me a Coffee : https://buymeacoffee.com/madhawapolb #linux #raspberrypi #gpio #programming