About the Device Tree

Nic_Cyn · February 19, 2015, 1:00pm

I have written a technical note which attempts to provide some insights into the workings of the Device Tree.

http://www.OfItselfSo.com/BeagleNotes/AboutTheDeviceTree.pdf

This document is the one I would have liked to have been able to read when I was trying to figure it all out. Once I thought I had got a reasonable grip on the goings-on in the Device Tree I wrote it all down in the thought that it might clarify things a bit for others.

Andrey_Nechypurenko · February 19, 2015, 2:40pm

Thank you very much Nic for this document. Really like it and think it
would be very useful not only for BB users but in general those who
start their adventure with device tree .

Thank you very much!

dlf1 · February 19, 2015, 3:31pm

Nice Work !

well written, and organized.

worthy of a sticky … or something

Graham1 · February 19, 2015, 3:55pm

Nic:

Thank you for writing and sharing that document.

The way that the BBB changes and modifies the Device Tree is a moving target.

I can see that that this document will need to be extended for the dtb-rebuilder and
the coming ChangeSets.

I wish I had this document six months ago.

Thanks,
— Graham

RobertCNelson · February 19, 2015, 4:01pm

hopefully dtb-rebuilder won't be needed to much longer .

https://lkml.org/lkml/2015/2/18/258

Regards,

Graham_Haddock · February 19, 2015, 4:17pm

Just after I figured out how to use it … .

I like the method better than device tree overlays.

I hope ChangeSets is better yet.

— Graham