Traditional Wi-Fi adapters for Linux require the management of the Wi-Fi network to be done by the Linux OS. This becomes a problem when trying to deploy headless embedded Linux devices into new Wi-Fi networks.
By enumerating as an Ethernet-over-USB RNDIS bridge, the Lantronix xPico Wi-Fi presents itself as a standard Ethernet network interface so the Linux device doesn't have to do any special Wi-Fi management. All the connection management is done by the xPico Wi-Fi itself, and is managed via the Soft Access Point interface.
See the video below for more information.
And visit the Lantronix wiki for details on how to configure your embedded Linux device to work with the Lantronix xPico Wi-Fi: