Re: [Xenomai] RT-CAN question (was: CAN bus on beaglebone black)

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

On Fri, Mar 20, 2015 at 10:42:05AM -0700, Steve B wrote:
> Michael,
> At least for the Beaglebone Black case, it is looking like you will have a
> good and simple way of picking which driver you load.
> I am working on getting the driver integrated to the Xenomai tree and in
> the process making minor tweaks.. by changing the "compatibility" string to
> something unique it looks like you can match the CAN device to the driver
> in your device tree overlay. Should be no more having to load the original
> driver first.
> 
> I have a bit of an issue that I'm trying to work around with splitting the
> driver into the multiple source files, but once I get that sorted out it
> should be ready to work that way!

>From what I understood, the device tree is a description of the
hardware, so the compatibility string describes what hardware a
board/controller is based on. So, it does not make sense to change
the compatibility string to change the driver used. This is contrary
to the spirit of the device tree. A device tree is supposed to be OS
independent, the device tree files licenses for instance, have been
chosen to not prevent a device tree file from being used with BSD.

-- 
					    Gilles.