Questions about the layer structure in OpenEmbedded-Core

Questions about the layer structure in OpenEmbedded-Core

[Samuel Stirtzel]

Hi,
lately I looked a bit into the structure of OE-Core and found pages
like: http://www.yoctoproject.org/projects/openembedded-core, and
http://openembedded.org/index.php/LayerIndex

1. question: Are these informations reliable (the layer index page
seems outdated). From the information I found, this graphic was
created as conclusion:
http://imageshack.us/photo/my-images/155/openembeddedlayers.png/

2.: Currently the "UI layer" seems to be contained in
meta-openembedded, so is this _the_ layer for UI and windowmanager
recipes or is this a subject to change?

3.: The commercial layer is nowhere found, what are the plans for this
layer, or was this just an idea?

4.: In which layer would distributions fit in the graphic?

5.: Is something important missing / wrong in my graphic (other than
the distro stuff)?


Regards
Samuel

Re: Questions about the layer structure in OpenEmbedded-Core

[Denys Dmytriyenko]

On Fri, Aug 12, 2011 at 08:17:52AM +0200, Samuel Stirtzel wrote:
> Hi,
> lately I looked a bit into the structure of OE-Core and found pages
> like: http://www.yoctoproject.org/projects/openembedded-core, and
> http://openembedded.org/index.php/LayerIndex
> 
> 1. question: Are these informations reliable (the layer index page
> seems outdated). From the information I found, this graphic was
> created as conclusion:
> http://imageshack.us/photo/my-images/155/openembeddedlayers.png/
> 
> 2.: Currently the "UI layer" seems to be contained in
> meta-openembedded, so is this _the_ layer for UI and windowmanager
> recipes or is this a subject to change?
> 
> 3.: The commercial layer is nowhere found, what are the plans for this
> layer, or was this just an idea?

Commercial layers are what envisioned to be provided by OSVs, such as Mentor, 
MontaVista, TimeSys etc...

> 4.: In which layer would distributions fit in the graphic?

In one of the earlier discussions it was said that distribution layer is 
rather vertical and can span across multiple other layers by modifying and 
adjusting different aspects through config files and .bbappends

> 5.: Is something important missing / wrong in my graphic (other than
> the distro stuff)?

-- 
Denys

Re: Questions about the layer structure in OpenEmbedded-Core

[Samuel Stirtzel]

2011/8/12 Denys Dmytriyenko <denis@denix.org>:
> On Fri, Aug 12, 2011 at 08:17:52AM +0200, Samuel Stirtzel wrote:
>> Hi,
>> lately I looked a bit into the structure of OE-Core and found pages
>> like: http://www.yoctoproject.org/projects/openembedded-core, and
>> http://openembedded.org/index.php/LayerIndex
>>
>> 1. question: Are these informations reliable (the layer index page
>> seems outdated). From the information I found, this graphic was
>> created as conclusion:
>> http://imageshack.us/photo/my-images/155/openembeddedlayers.png/
>>
>> 2.: Currently the "UI layer" seems to be contained in
>> meta-openembedded, so is this _the_ layer for UI and windowmanager
>> recipes or is this a subject to change?
>>
>> 3.: The commercial layer is nowhere found, what are the plans for this
>> layer, or was this just an idea?
>
> Commercial layers are what envisioned to be provided by OSVs, such as Mentor,
> MontaVista, TimeSys etc...
>
Missed out that OSV means Open Source Vendor.
Would recipes for software like the Qt framework or Java fit in this
layer, or is it more for additional recipes to these packages like
mysql or postgresql plugins for Qt?
>> 4.: In which layer would distributions fit in the graphic?
>
> In one of the earlier discussions it was said that distribution layer is
> rather vertical and can span across multiple other layers by modifying and
> adjusting different aspects through config files and .bbappends
>
Thanks for pointing this out.
I thought that it would be something similar like this, now I got the
graphic adjusted properly:
http://imageshack.us/photo/my-images/99/openembeddedlayers.png/

>> 5.: Is something important missing / wrong in my graphic (other than
>> the distro stuff)?
>
> --
> Denys


Regards
Samuel

Re: Questions about the layer structure in OpenEmbedded-Core

[Koen Kooi]

Op 12 aug. 2011, om 09:30 heeft Samuel Stirtzel het volgende geschreven:

> 2011/8/12 Denys Dmytriyenko <denis@denix.org>:
>> On Fri, Aug 12, 2011 at 08:17:52AM +0200, Samuel Stirtzel wrote:
>>> Hi,
>>> lately I looked a bit into the structure of OE-Core and found pages
>>> like: http://www.yoctoproject.org/projects/openembedded-core, and
>>> http://openembedded.org/index.php/LayerIndex
>>> 
>>> 1. question: Are these informations reliable (the layer index page
>>> seems outdated). From the information I found, this graphic was
>>> created as conclusion:
>>> http://imageshack.us/photo/my-images/155/openembeddedlayers.png/
>>> 
>>> 2.: Currently the "UI layer" seems to be contained in
>>> meta-openembedded, so is this _the_ layer for UI and windowmanager
>>> recipes or is this a subject to change?
>>> 
>>> 3.: The commercial layer is nowhere found, what are the plans for this
>>> layer, or was this just an idea?
>> 
>> Commercial layers are what envisioned to be provided by OSVs, such as Mentor,
>> MontaVista, TimeSys etc...
>> 
> Missed out that OSV means Open Source Vendor.
> Would recipes for software like the Qt framework or Java fit in this

Qt is already in OE-core

> layer, or is it more for additional recipes to these packages like
> mysql or postgresql plugins for Qt?

And those plugins are already in meta-oe


>>> 4.: In which layer would distributions fit in the graphic?
>> 
>> In one of the earlier discussions it was said that distribution layer is
>> rather vertical and can span across multiple other layers by modifying and
>> adjusting different aspects through config files and .bbappends
>> 
> Thanks for pointing this out.
> I thought that it would be something similar like this, now I got the
> graphic adjusted properly:
> http://imageshack.us/photo/my-images/99/openembeddedlayers.png/
> 
>>> 5.: Is something important missing / wrong in my graphic (other than
>>> the distro stuff)?
>> 
>> --
>> Denys
> 
> 
> Regards
> Samuel
> 
> _______________________________________________
> Openembedded-core mailing list
> Openembedded-core@lists.openembedded.org
> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core

Re: Questions about the layer structure in OpenEmbedded-Core

[Samuel Stirtzel]

2011/8/12 Koen Kooi <koen@dominion.thruhere.net>:
>
> Op 12 aug. 2011, om 09:30 heeft Samuel Stirtzel het volgende geschreven:
>
>> 2011/8/12 Denys Dmytriyenko <denis@denix.org>:
>>> On Fri, Aug 12, 2011 at 08:17:52AM +0200, Samuel Stirtzel wrote:
>>>> Hi,
>>>> lately I looked a bit into the structure of OE-Core and found pages
>>>> like: http://www.yoctoproject.org/projects/openembedded-core, and
>>>> http://openembedded.org/index.php/LayerIndex
>>>>
>>>> 1. question: Are these informations reliable (the layer index page
>>>> seems outdated). From the information I found, this graphic was
>>>> created as conclusion:
>>>> http://imageshack.us/photo/my-images/155/openembeddedlayers.png/
>>>>
>>>> 2.: Currently the "UI layer" seems to be contained in
>>>> meta-openembedded, so is this _the_ layer for UI and windowmanager
>>>> recipes or is this a subject to change?
>>>>
>>>> 3.: The commercial layer is nowhere found, what are the plans for this
>>>> layer, or was this just an idea?
>>>
>>> Commercial layers are what envisioned to be provided by OSVs, such as Mentor,
>>> MontaVista, TimeSys etc...
>>>
>> Missed out that OSV means Open Source Vendor.
>> Would recipes for software like the Qt framework or Java fit in this
>
> Qt is already in OE-core
This was meant as an example for an already existing recipe, however I
undestood what could go in the commercial layer.
>
>> layer, or is it more for additional recipes to these packages like
>> mysql or postgresql plugins for Qt?
>
> And those plugins are already in meta-oe
>
Thanks, it's good to know about this.

>>>> 5.: Is something important missing / wrong in my graphic (other than
>>>> the distro stuff)?

Ok questions 3 and 4 answered, maybe anyone would like to answer the
question about the "UI layer"?


Regards
Samuel

Re: Questions about the layer structure in OpenEmbedded-Core

[Paul Eggleton]

On Friday 12 August 2011 07:17:52 Samuel Stirtzel wrote:
> lately I looked a bit into the structure of OE-Core and found pages
> like: http://www.yoctoproject.org/projects/openembedded-core, and
> http://openembedded.org/index.php/LayerIndex
> 
> 1. question: Are these informations reliable (the layer index page
> seems outdated).

I wrote both of these with input from the community recently, so they should 
be fairly reliable and up-to-date - was there something missing that you 
noticed? Suggestions welcome.

> 2.: Currently the "UI layer" seems to be contained in
> meta-openembedded, so is this _the_ layer for UI and windowmanager
> recipes or is this a subject to change?

There are several different UIs available. OE-core provides Sato (mainly for 
testing); the meta-openembedded repository contains several layers that 
provide some more (GNOME, XFCE, etc.)
 
> 3.: The commercial layer is nowhere found, what are the plans for this
> layer, or was this just an idea?

As Denys mentioned this sort of thing is (or is expected to be) provided by 
multiple OSVs.
 
> 4.: In which layer would distributions fit in the graphic?

I would imagine they would take the place of the commercial layer - after all, 
both would be providing the same sorts of "policy" type metadata.
 
> 5.: Is something important missing / wrong in my graphic (other than
> the distro stuff)?

It looks good, but I'm not sure that you'd expect to be mixing all of these 
layers together in one configuration; e.g. the commercial layer / distro 
layers.

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre

Re: Questions about the layer structure in OpenEmbedded-Core

[Paul Eggleton]

On Friday 12 August 2011 10:31:12 you wrote:
> 2011/8/12 Paul Eggleton <paul.eggleton@linux.intel.com>:
> > I wrote both of these with input from the community recently, so they
> > should be fairly reliable and up-to-date - was there something missing
> > that you noticed? Suggestions welcome.
> 
> Maybe these are not from OpenEmbedded (or newer than the update) but I
> got additionally items, which where provided by the setup script:
> meta-efikamx, meta-openpandora (openpandora may come somewhere from
> angstrom) and meta-xilinx.

Right, I have now added those to the layer index. Thanks!

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre

Re: Questions about the layer structure in OpenEmbedded-Core

[George C. Huntington, III]

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that graphic is nice, could it be included in the wiki?

On Fri, Aug 12, 2011 at 6:47 AM, Paul Eggleton <
paul.eggleton@linux.intel.com> wrote:

> On Friday 12 August 2011 10:31:12 you wrote:
> > 2011/8/12 Paul Eggleton <paul.eggleton@linux.intel.com>:
> > > I wrote both of these with input from the community recently, so they
> > > should be fairly reliable and up-to-date - was there something missing
> > > that you noticed? Suggestions welcome.
> >
> > Maybe these are not from OpenEmbedded (or newer than the update) but I
> > got additionally items, which where provided by the setup script:
> > meta-efikamx, meta-openpandora (openpandora may come somewhere from
> > angstrom) and meta-xilinx.
>
> Right, I have now added those to the layer index. Thanks!
>
> Cheers,
> Paul
>
> --
>
> Paul Eggleton
> Intel Open Source Technology Centre
>
> _______________________________________________
> Openembedded-core mailing list
> Openembedded-core@lists.openembedded.org
> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
>

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Re: Questions about the layer structure in OpenEmbedded-Core

[Samuel Stirtzel]

2011/8/12 George C. Huntington, III <george.huntingtoniii@gmail.com>:
> that graphic is nice, could it be included in the wiki?
>

Well I would not mind, but I've noticed the graphic has still flaws:
The distros would unlikely impact on the hardware specific code (or
would they?), and I don't know if/how they affect the yocto layer.
In this case I should investigate further before this image can be
used as an overview.



Regards
Samuel

Re: Questions about the layer structure in OpenEmbedded-Core

[Koen Kooi]

Op 12 aug. 2011, om 12:47 heeft Paul Eggleton het volgende geschreven:

> On Friday 12 August 2011 10:31:12 you wrote:
>> 2011/8/12 Paul Eggleton <paul.eggleton@linux.intel.com>:
>>> I wrote both of these with input from the community recently, so they
>>> should be fairly reliable and up-to-date - was there something missing
>>> that you noticed? Suggestions welcome.
>> 
>> Maybe these are not from OpenEmbedded (or newer than the update) but I
>> got additionally items, which where provided by the setup script:
>> meta-efikamx, meta-openpandora (openpandora may come somewhere from
>> angstrom) and meta-xilinx.
> 
> Right, I have now added those to the layer index. Thanks!

There's also:

https://github.com/ebutera/meta-igep
http://gitorious.org/schnitzeltony-oe-meta/meta-freescale
http://gitorious.org/schnitzeltony-oe-meta/meta-gumstix
https://github.com/koenkooi/meta-ettus

and likely much more

Re: Questions about the layer structure in OpenEmbedded-Core

[Paul Eggleton]

On Friday 12 August 2011 13:07:05 Koen Kooi wrote:
> There's also:
> 
> https://github.com/ebutera/meta-igep
> http://gitorious.org/schnitzeltony-oe-meta/meta-freescale
> http://gitorious.org/schnitzeltony-oe-meta/meta-gumstix
> https://github.com/koenkooi/meta-ettus

Are those freescale/gumstix ones "official"?

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre

Re: Questions about the layer structure in OpenEmbedded-Core

[Philip Balister]

On 08/12/2011 09:16 AM, Paul Eggleton wrote:
> On Friday 12 August 2011 13:07:05 Koen Kooi wrote:
>> There's also:
>>
>> https://github.com/ebutera/meta-igep
>> http://gitorious.org/schnitzeltony-oe-meta/meta-freescale
>> http://gitorious.org/schnitzeltony-oe-meta/meta-gumstix
>> https://github.com/koenkooi/meta-ettus
>
> Are those freescale/gumstix ones "official"?

The gumstix ones are not. Hopefully, Gumstix picks them up though. The 
gumstix one was announced on the gumstix list.

Philip

Re: Questions about the layer structure in OpenEmbedded-Core

[Samuel Stirtzel]

2011/8/12 Koen Kooi <koen@dominion.thruhere.net>:
>
> Op 12 aug. 2011, om 12:47 heeft Paul Eggleton het volgende geschreven:
>
> There's also:
>
> https://github.com/ebutera/meta-igep
> http://gitorious.org/schnitzeltony-oe-meta/meta-freescale
> http://gitorious.org/schnitzeltony-oe-meta/meta-gumstix
> https://github.com/koenkooi/meta-ettus
>
> and likely much more

I'd guess there is no list for third party components/repositories, or
am I wrong?



Regards
Samuel

Re: Questions about the layer structure in OpenEmbedded-Core

[Paul Eggleton]

On Monday 15 August 2011 10:06:33 Samuel Stirtzel wrote:
> 2011/8/12 Koen Kooi <koen@dominion.thruhere.net>:
> > There's also:
> > 
> > https://github.com/ebutera/meta-igep
> > http://gitorious.org/schnitzeltony-oe-meta/meta-freescale
> > http://gitorious.org/schnitzeltony-oe-meta/meta-gumstix
> > https://github.com/koenkooi/meta-ettus
> > 
> > and likely much more
> 
> I'd guess there is no list for third party components/repositories, or
> am I wrong?

I had intended the list to cover all available layers. However for layers that 
refer to other projects/manufacturers/products where the layer is not an 
official one, I think it's fine to list it there but important to mark it 
"unofficial".

BTW I plan to add the above to the list some time today if I get time to do 
so.

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre

Re: Questions about the layer structure in OpenEmbedded-Core

[Samuel Stirtzel]

2011/8/15 Paul Eggleton <paul.eggleton@linux.intel.com>:
> On Monday 15 August 2011 10:06:33 Samuel Stirtzel wrote:
>> 2011/8/12 Koen Kooi <koen@dominion.thruhere.net>:
>> > There's also:
>> >
>> > https://github.com/ebutera/meta-igep
>> > http://gitorious.org/schnitzeltony-oe-meta/meta-freescale
>> > http://gitorious.org/schnitzeltony-oe-meta/meta-gumstix
>> > https://github.com/koenkooi/meta-ettus
>> >
>> > and likely much more
>>
>> I'd guess there is no list for third party components/repositories, or
>> am I wrong?
>
> I had intended the list to cover all available layers. However for layers that
> refer to other projects/manufacturers/products where the layer is not an
> official one, I think it's fine to list it there but important to mark it
> "unofficial".

It would be great to see at a glance what repositories exist out there.
Reinventing (or porting new software again) would become less
necessary if someone already did the things that you need.

>
> BTW I plan to add the above to the list some time today if I get time to do
> so.

That would be nice, I've got an idea for the unofficial list but it is
currently not sophisticated enough.

>
> Cheers,
> Paul
>
> --
>
> Paul Eggleton
> Intel Open Source Technology Centre
>
> _______________________________________________
> Openembedded-core mailing list
> Openembedded-core@lists.openembedded.org
> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
>



Regards
Samuel