[sdx12]sdx12平台QCA6174 使用hostapd WiFi 2.4G强制40MHz频宽不生效问题分析及实现

问题描述

      sdx12平台，高通默认hostapd 2.4G不支持强制40MHz的功能,在干扰环境下默认总是协商到20MHz，比方便认证和跑流测试。

hostapd版本

/ # hostapd
hostapd v2.10-devel
User space daemon for IEEE 802.11 AP management,
IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator
Copyright (c) 2002-2019, Jouni Malinen <[e-mail]> and contributors

usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] \
         [-g <global ctrl_iface>] [-G <group>]\
         [-i <comma-separated list of interface names>]\
         <configuration file(s)>

options:
   -h   show this usage
   -d   show more debug messages (-dd for even more)
   -B   run daemon in the background
   -e   entropy file
   -g   global control interface path
   -G   group for control interfaces
   -P   PID file
   -K   include key data in debug messages
   -f   log output to debug file instead of stdout
   -i   list of interface names to use
   -S   start all the interfaces synchronously