[yocto] undocumented MACHINE_FEATURES, and what makes something a MACHINE feature?

[Robert P. J. Day]

On Fri, 15 Nov 2013, Burton, Ross wrote:

> On 15 November 2013 10:49, Robert P. J. Day <rpjday at crashcourse.ca> wrote:
> >   as you can see, the only tests for 'wifi' involve either
> > DISTRO_FEATURES or COMBINED_FEATURES, *not* MACHINE_FEATURES
> > individually. under the circumstances, then, can 'wifi' be
> > considered a legitimate MACHINE feature if it's never being tested
> > in that context? (the same can be said for 'bluetooth', by the
> > way.)
>
> COMBINED_FEATURES is a union of MACHINE_ and DISTRO_FEATURES, so it
> does make sense for them to be listed as MACHINE_FEATURES as
> otherwise they can't be combined...  No point building wifi in the
> distro if the machine doesn't support it, and the machine supporting
> wifi isn't a reason to enable it in the distro.

  in order to identify missing entries from the list of
MACHINE_FEATURES here:

http://www.yoctoproject.org/docs/latest/ref-manual/ref-manual.html#ref-features-machine

i did a few quick grep's and wrote up the results here:

  http://www.crashcourse.ca/wiki/index.php/OE#MACHINE_FEATURES

in short, there *appear* to be a number of valid machine features that
could be added to the ref manual page, but the last few are a bit
puzzling and i wouldn't know how to write them up, but i'll let
someone else make that call.

rday

-- 

========================================================================
Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
========================================================================