Kernel (re)build for UAC function of LTE modules

I’m trying to test this feature on a particular LTE (EG25-G) device but I’m stuck.
Does anybody know if such a feature is already there or if I should build my own custom kernel to make it work (for example, open-wrt has been patched for it)?
Side note, I get the following if I type menuconfig:
/usr/bin/menuconfig: [Errno 2] No such file or directory: ‘Kconfig’ .
I’ve yet to search for more on this but Kconfig was in a bundle I installed.
Basically, I really need to answer that call. :sweat_smile:
Thanks for any information.

More info in this paper :
LTE Standard UAC Application Note V1.0 .
Section 4.2.2. UAC Use in Linux Devices

If the device driver is upstreamed, we just need to know the module name or config option and we can enable the module (if it isn’t already enabled). If it’s out of tree, you’ll want to go the DKMS route.

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