Writing a Linux Kernel Module — Part 3: Buttons and LEDs

In this series of articles I describe how you can write a Linux loadable kernel module (LKM) for an embedded Linux device. This is the third article in the series — please read:

Writing a Linux Kernel Module — Part 1: Introduction, and
Writing a Linux Kernel Module — Part 2: A Character Device,

before moving on to this article, as those articles […]

By |April 26th, 2015|Beaglebone, Blog, Linux|40 Comments

GPIOs on the Beaglebone Black using the Device Tree Overlays

This post provides supplementary information to the video that I have just posted on using GPIOs with the Beaglebone Black.
The Video
In this video I am going to continue my series on the Beaglebone by demonstrating how to use its GPIOs for both input and output applications. In this video I will wire simple input and output circuits that are attached to […]

By |June 12th, 2013|Beaglebone, Blog|102 Comments