How to use a detected USB RNDIS gadget as network adapter
I have a RaspberyPi module, with USB connected to another module computer (as USB host) running Linux. The RasPi is configured as USB ethernet gadget.
Once I boot the RasPi, and enter dmesg on the host computer, I see:
[ 2918.753649] usb 1-1: Product: RNDIS/Ethernet Gadget
So the Raspi is detected as gadget on the USB host computer.
But unlike a previous experiment, where I used another RaspberryPi as the host, where it also detected the 1st raspi as gadget and created a usb0 network adapter and assigned an IP configuration to it, this is not the case here. No usb-anything under ifconfig -a. Not listing it with the -a option means that no network device usb0 exists, configured or not?
My current host computer runs a rather down-sized Linux based on buildroot/busybox.
Is there a certain configuration missing that allows using this detected RNDIS gadget for network - which just happens to be done automatically on the default Raspi Linux distribution - but not necessarily on others?