2. Overview

Wi-Fi is the trademark of Wi-Fi alliance.

It is a wireless LAN technology based on IEEE 802.11 standard.

Mobile terminals with Wi-Fi function can connect to the Internet within the signal coverage, so as to reduce the trouble of cable erection and improve the convenience of use.

At present, many processor manufacturers provide various types of Wi-Fi processor solutions with different drivers, but these drivers are not universal.

In addition, the functions and performance supported by different driver versions may vary.

We need to ask Wi-Fi solution providers to provide appropriate Linux Wi-Fi drivers for porting.

Linux platform has generality for different Wi-Fi processor driver and operation mode.

This document will respectively introduce how CV180X uses Realtek solution for driver porting and adaptation on different interfaces (such as USB or SDIO), as well as related operations.

The Wi-Fi module used in this document is

• AP6201BM (Broadcom bcm43013c1), supports SDIO interface.