The Device Tree (DT), and Device Tree Overlay are a way to describe hardware in a system. An example of this would be to describe how the UART interfaces with the system, which pins, how they should be muxed, the device to enable, and which driver to use.
The original BeagleBone didn’t use the DT, but the recently released BeagleBone Black was released with the DT and is now using the 3.8 Linux Kernel.
The following pages will attempt to break down the concepts, and give examples on how and why you’d want to use the device tree in your every day development and hacking.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — “Silicon Valley startups invade Best Buy”
Wearables — Bringing cosplay to life
Electronics — Is your op amp going crazy?
Biohacking — mPort is Making a 3D Body Scanner Booth
No comments yet.
Sorry, the comment form is closed at this time.