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

[Chris Tapp]

On 26 Jan 2015, at 19:31, James Abernathy <jfabernathy at outlook.com> wrote:

> I get a clean build when I add: CORE_IMAGE_EXTRA_INSTALL += " packagegroup-base-wifi”
> 
> However, I have no wireless drivers.  I must have to add something to add the drivers and firmware to the kernel.  Not sure what though.

I'm not an expert here, but I think that adding kernel-modules and linux-firmware to your extra_install should give you what you need.

> 
> Jim A
> 
>> On Jan 26, 2015, at 11:09 AM, James Abernathy <jfabernathy at outlook.com> wrote:
>> 
>>> 
>>> 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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--

Chris Tapp
opensource at keylevel.com
www.keylevel.com

----
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