[oe] how to create a new layer

[Paul Eggleton]

On Thursday 22 May 2014 15:46:01 Richard Cagley wrote:
> > One other thing to note - if there are overrides for the previous machine
> > (e.g. in bbappends you may see _zedboard-zynq7) you should change
> > these to _me so that they still apply.
> 
> What is the threshold for making a new machine? That is, if I just
> have a .bbappend file I want, that should just involve creating a new
> layer and putting the bbappend file in the correct location. I
> shouldn't have to change anything else correct?
> 
> For instance, if I just want to change the kernel configuration with a
> frag file I can put linux-xlnx_3.8.bbappedn in
> meta-me/recipes-kernel/linux and that's all I need?

Yes, that should be all that is required - no need for your own machine 
configuration in this case.

> I guess I'm just confused at what point I actually need a new machine.

If you want to change the global configuration for the machine substantially 
from that in the original BSP, you may need to create your own machine 
configuration; but for the exact same hardware as the original BSP supports I 
would have thought that in most cases it would not be necessary.

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre