[yocto] adding all the pieces of WiFi to core-image-minimal

[James Abernathy]

> On Jan 26, 2015, at 10:52 AM, Gary Thomas <gary at mlbassoc.com> wrote:
> 
> On 2015-01-26 08:26, James Abernathy wrote:
>> 
>>> On Jan 26, 2015, at 8:49 AM, Gary Thomas <gary at mlbassoc.com <mailto:gary at mlbassoc.com>> wrote:
>>> 
>>> On 2015-01-26 06:29, James Abernathy wrote:
>>>> 
>>>>> On Jan 23, 2015, at 12:37 PM, Gary Thomas <gary at mlbassoc.com <mailto:gary at mlbassoc.com>> wrote:
>>>>> 
>>>>> On 2015-01-23 10:24, Jim Abernathy wrote:
>>>>>> I'm starting a project mostly for self-education.  I have already done the project using Ubuntu Server 14.04 using a Intel NUC and a Pandaboard as targets.  Now I want to see how
>>>>>> easy it is to move it to Yocto.
>>>>>> 
>>>>>> Starting with the NUC, I can boot Dizzy 1.7.1 core-image-minimal and core-image-sato, both built with bitbake and not the prebuilt images. However, core-image-minimal doesn't have
>>>>>> WiFi and core-image-sato does, but I don't need all the GUI stuff.  It's a headless application.
>>>>>> 
>>>>>> So what is recommended; eliminating the GUI from sato or adding wifi and wpa-supplicant, etc to minimal??  Also any pointers to how to do the adding/subtracting would be most
>>>>>> helpful.
>>>>>> 
>>>>>> Once this is working all I have to do is put apache-tomcat, and openjdk-7-jre, then my application.
>>>>> 
>>>>> We use just iw & wpa-supplicant and set up the configuration
>>>>> files manually (e.g. the wpa-supplicant configurations).
>>>> 
>>>> Could you help with a little more details.  What I envision is adding an append statement of some kind to local.conf to load in the wireless related files to core-image-minimal,
>>>> same with openjdk-7-jre and tomcat7, but my first efforts have generated some unintelligible error for me.  So that’s why I’m looking for direction on where to start with this.
>>> 
>>> What was the error you got?  I'll bet it was for 'iw' which
>>> is a package from meta-oe, so you'll need to add that layer
>>> 
>>> Once you've added the meta-oe layer, you should be able to
>>> put this line in your local.conf:
>>> CORE_IMAGE_EXTRA_INSTALL += " iw wpa-supplicant”
>>> 
>> Okay, what I don’t get is the fact that without any additional layers, bitbake core-image-sato builds all the WiFi features I need.  bitbake core-image-minimal does not.  So I’m
>> thinking that there is some CORE_IMAGE_EXTRA_INSTALL statement that can just add what is needed without extra layers.
>> 
>> I guess it just doesn’t make sense to me right now.
> 
> Try using
>  CORE_IMAGE_EXTRA_INSTALL += " packagegroup-base-wifi"
> which will bring in 'wireless-tools' and 'wpa-supplicant'.
> 
> I prefer 'iw' to 'wireless-tools' as it is newer and [IMO]
> simpler to use.
> 
Thanks, I found that I can clean build with just the wpa-supplicant added and I’m hoping that will bring in the wifi drivers.  If it does, all I want to do is edit the /etc/interfaces file with the Static IP of the wlan0, the static IP of the eth0 and the wpa-xxx for the WKPA2_PSK information.  

Do I really need the tools?  I don’t need CLI commands to change any network parameters later.

Jim A

> -- 
> ------------------------------------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
> ------------------------------------------------------------
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