NetHub

NetHub bridges device-side Wi-Fi capability to a selected host-link backend.

The current solution targets Wi-Fi SoCs such as BL616 / BL618 / BL616CL / BL618DG.

Current Status

Item	Current status
Default interface	`SDIO`
USB data-path	device-side `USB ECM` backend implemented
USB control transport	device-side `USB ACM` transport plumbing implemented
SPI	not implemented
USER virtual channel	default interface is `SDIO`
Low power	currently `BL618DG` only
Optional ATModule control solution	available, but not mandatory

Use these documents according to what you need:

Document	Focus
NetHubQuickBringup.md	default interface, main configuration switches, build and flash, SDIO and USB pins
NetHubArchitecture.md	internal layering, public APIs, support matrix, and host-link differences
NetHubVirtualChannel.md	USER virtual channel scope, prerequisites, APIs, and limits

SDIO is the current default interface and the current in-tree reference path.
USB device-side backend is implemented with ECM + ACM.
SPI is still a stub and is not ready for bring-up.
nethub core exposes data-path, control-path, and virtual-channel facades without directly depending on ATModule.
The optional ATModule + bflbwifid + bflbwifictrl flow is available, but it is not required.

The in-repo documentation source is: