內(nèi)核的配置：

General setup? ---> Kernel compression mode (LZMA)? --->LZMA

[*] Networking support? --->

Networking options? --->

Packet socket

Packet: sockets monitoring interface

Unix domain sockets

Transformation user configuration interface

-*- Transformation migrate database

PF_KEY sockets

[*]?? PF_KEY MIGRATE

[*] TCP/IP networking

[*]?? IP: multicasting

Large Receive Offload (ipv4/tcp)

INET: socket monitoring interface

[*]?? TCP: MD5 Signature Option support (RFC2385)

[*] Network activity statistics tracking

-*-?? Wireless? --->

cfg80211 - wireless configuration API

[*]???? nl80211 testmode command

[*]???? enable powersave by default

[*]???? cfg80211 wireless extensions compatibility

RF switch subsystem support? --->

Device Drivers? ---> [*] Network device support? --->

[*]?? Network core driver support

Generic Media Independent Interface device support

[*]?? Ethernet driver support? --->

PHY Device support and infrastructure? --->

[*]?? Wireless LAN? --->

Broadcom IEEE802.11n embedded FullMAC WLAN driver

[*]???? USB bus interface support for FullMAC driver

IEEE 802.11 for Host AP (Prism2/2.5/3 and WEP/TKIP/CCMP)

2、wireless_tools交叉編譯：

下載地址：https://hewlettpackard.github.io/wireless-tools/Tools.html

tar zxvf?tar zxvf wireless_tools.29.tar.gz

cd ?wireless_tools.29

vi Makefile ,添加修改CC = arm-hisiv400-linux-gcc? ? ?AR = arm-hisiv400-linux-ar? ? ? RANLIB = arm-hisiv400-linux-ranlib

make

在當(dāng)前目錄下回生成iwconfig和iwlist工具，復(fù)制到交叉編譯的平臺(tái)

3、有時(shí)候即使iwconfig和iwlist工具編譯成功，但會(huì)出現(xiàn)wlan0 no wireless extensions，或者出現(xiàn)wlan0? Interface doesn't support scanning，如圖：

這是內(nèi)核選項(xiàng)沒有選對(duì)對(duì)iwconfig的支持選項(xiàng)，這時(shí)候你就要好好檢查一下你的內(nèi)核配置了。

總結(jié)

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