[yocto] Adding features to a machine

[Darren Hart]

On 12/08/2011 12:36 PM, Marc Ferland wrote:
> On Thu, Dec 8, 2011 at 2:50 PM, Darren Hart <dvhart at linux.intel.com
> <mailto:dvhart at linux.intel.com>> wrote:
> 
>     On 12/08/2011 11:13 AM, Marc Ferland wrote:
>     > Hi,
>     >
>     > I have a crownbay based machine here and I would like to add the
>     > bluetooth machine feature to it. Do I have to create a whole new
>     BSP for
>     > this? I haven't seen any examples showing how to _modify_ a machine
>     > description.
> 
> 
>     Have you tried modifying either MACHINE_FEATURES_crownbay or
>     KERNEL_FEATURES_crownbay from local.conf? I haven't attempted this
>     myself, but I believe it should work.
> 
> 
> Tried both.
> 
> With MACHINE_FEATURES_crownbay += "bluetooth" I get:
> NOTE: Resolving any missing task queue dependencies
> ERROR: Nothing RPROVIDES 'modutils-depmod' (but
> /home/marc/dev/poky/poky-src/meta/recipes-kernel/update-modules/update-modules_1.0.bb
> <http://update-modules_1.0.bb> RDEPENDS on or otherwise requires it)
> NOTE: Runtime target 'modutils-depmod' is unbuildable, removing...

Hrm, yes, I don't see what provides modutils-depmod. I believe you may
have found a bug. Mind filing one?

> Missing or unbuildable dependency chain was: ['modutils-depmod']
> NOTE: Runtime target 'perf' is unbuildable, removing...
> Missing or unbuildable dependency chain was: ['perf', 'update-modules',
> 'modutils-depmod']
> NOTE: Runtime target 'task-core-tools-profile' is unbuildable, removing...
> Missing or unbuildable dependency chain was: ['task-core-tools-profile',
> 'perf', 'update-modules', 'modutils-depmod']
> ERROR: Required build target 'sonatest-test-image' has no buildable
> providers.
> Missing or unbuildable dependency chain was: ['sonatest-test-image',
> 'task-core-tools-profile', 'perf', 'update-modules', 'modutils-depmod']
> 
> With KERNEL_FEATURES_crownbay += "bluetooth", I get the following when
> recompiling the kernel:
> Log data follows:
> | Deleted branch meta-temp (was 620917d).
> | WARNING: addon feature "bluetooth" was not found
> | ERROR: required features were not found. aborting
> 
> BTW, I did not find any precise kernel feature for bluetooth when
> looking in
> builddir/tmp/work/crownbay-poky-linux/linux-yocto/linux/meta/cfg/kernel-cache/

Right, you would need to add something if you need a driver that isn't
listed there or in the crownbay BSP.


-- 
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel