[yocto] Fwd: How do I control what kernel modules are being loaded?

[Hans Beckerus]

On 2013-03-11 2:49, Eric Bénard wrote:
> Hi Bruce,
>
> Le Mon, 11 Mar 2013 09:37:44 -0400,
> Bruce Ashfield <bruce.ashfield at windriver.com> a écrit :
>> Can you post your exact changes where we can see them ? You need to put
>> the module_autload variable in a .conf file, whether that be your
>> local.conf, your machine.conf or you distro configuration file (which
>> it appears that you are doing), but you also must have the name of
>> the module package correct, and the module needs to be part of your
>> IMAGE_INSTALL, since the code fragment I pasted above is from the
>> post installation fragment created for the various module packages
>> as they are created.
>>
>> i.e. I have this in a .conf file:
>>
>>      module_autoload_nfsd = "nfsd"
>>
>> To ensure that the nfsd .ko is loaded on boot, when the module is built
>> and present on the rootfs.
>>
> I think the problem is that this works when building modules inside the
> kernel (module_autoload is handled in kernel.bbclass), but not when
> building a module with its own recipe (using module.bbclass) as Hans
> is doing, that's why I previously told him to "get inspiration from
> kernel.bbclass to do the same thing in your recipe".
>
> Thinking again to this (after pressing send of course ;-) : Or maybe he
> needs to build again its kernel after setting module_autoload_hismodule
> = "hismodule" so that the module name gets handled by the kernel
> recipe ?
>
> Eric
>
Bringing in the split kernel module support (by looking at the .bbclass) 
from master should do the trick.
But, after adding more functionality to my system, I suddenly realized 
this was in fact never needed :(
Since the kernel is built with "Kernel Module Loader" support, the 
modules I needed was automatically
modprobed. I now also understand why the mandatory module was loaded 
automatically.
I will still test the split module functionality since it is probably 
interesting to know if it works as expected or not.
Again, thanks for all the help.

Hans