Embedded Linux

Yocto tutorial for BeagleBone Black — reproducible build environment in an Ubuntu Docker container.

From a single layer to a production-ready BSP structure: layer priorities and dependencies, PACKAGECONFIG, bblayers.conf pitfalls, and rebuild-time management in Yocto.

Writing a character-device kernel module for a GPIO interrupt on the BeagleBone Black, cross-compiling it, loading it, and contrasting it with the existing user-space approach.

A hands-on 'what can go wrong' tutorial: typical BeagleBone Black bring-up problems that can have hardware and software causes at the same time.