rtl8188cus移植

一、内核配置

配置内核支持cfg80211（802.11n协议）

Networking support --->

-*- Wireless --->

--- Wireless

<*> cfg80211 - wireless configuration API

enable powersave by default

cfg80211 wireless extensionscompatibility

<*> Common routines for IEEE802.11 drivers

Device Drivers --->

[*] Network device support --->

[*] Wireless LAN --->

<*> USB ZD1201 based Wireless device support

[*] USB support --->

<*> Support for Host-side USB

<*> USB Monitor

<*> USB Wireless Device Management support

配置完成后，保存退出。然后重新编译内核和内核模块

二、编译8188驱动

下载8188驱动 http://pan.baidu.com/s/1c27EdZa

我用的是4.0.2

在Makefile下添加

CONFIG_PLATFORM_ARM_AM335X = y

ifeq ($(CONFIG_PLATFORM_ARM_AM335X), y)

EXTRA_CFLAGS += -DCONFIG_LITTLE_ENDIAN

ARCH := arm

CROSS_COMPILE := arm-arago-linux-gnueabi-

KVER := 3.2.0

KSRC := /work/test/linux-3.2.0-psp04.06.00.11

endif

make

生成8192cu.ko

三、编译工具

需要四个

wpa_supplicant-0.7.3

wireless_tools.29

openssl-0.9.8e

libnl-2.0

3.1 编译wireless_tools.29

修改Makefile

## Compiler to use (modify this for cross compile).

CC = arm-arago-linux-gnueabi-gcc

## Other tools you need to modify for cross compile (static lib only).

AR = arm-arago-linux-gnueabi-ar

RANLIB = arm-arago-linux-gnueabi-ranlib

保存，make

将生成的iwpriv,iwconfig,iwlist,iwspy拷贝到开发板

3.2 编译libnl-2.0

CC=/usr/local/arm/arm-arago-linux-gnueabi/bin/arm-arago-linux-gnueabi-gcc ./configure --prefix=$PWD/_install --host=arm-arago-linux-gnueabi

make;make install

将生成的库文件和头文件拷贝到编译器usr目录

cd _install

tar czvf lib.tar.gz *

cp -rf lib.tar.gz /usr/local/arm/arm-arago-linux-gnueabi/usr

sudo tar xzvf lib.tar.gz

将这个库文件也拷贝到开发板

3.3 编译openssl-0.9.8e

cp wpa_supplicant-0.7.3/patches/openssl-0.9.8e-tls-extensions.patch openssl-0.9.8e

vi Makefile

INSTALLTOP=/usr/local/ssl

# Do not edit this manually. Use Configure --openssldir=DIR do change this!

OPENSSLDIR=/usr/local/ssl

CC= arm-arago-linux-gnueabi-gcc

AR= arm-arago-linux-gnueabi-ar $(ARFLAGS) r

RANLIB= /usr/local/arm/arm-arago-linux-gnueabi/bin/arm-arago-linux-gnueabi-ranlib

make

sudo make install

3.4 编译wpa_supplicant-0.7.3

cd wpa_supplicant-0.7.3/wpa_supplicant

cp defconfig .config

vi .config

CC=/usr/local/arm/arm-arago-linux-gnueabi/bin/arm-arago-linux-gnueabi-gcc -L/usr/local/ssl/lib

CFLAGS +=-I/usr/local/ssl/include

LIBS += -I/usr/local/arm/arm-arago-linux-gnueabi/usr/include

LIBS += -L/usr/local/ssl/lib

LIBS += -L/usr/local/arm/arm-arago-linux-gnueabi/usr/lib

LIBS_p += -L/usr/local/ssl/lib

CONFIG_LIBNL20=y

make

将生成的wpa_supplicant、wpa_cli、wpa_passphrase拷贝到开发板

3.5 编译hostapd-0.8

cd hostapd-0.8/hostapd

cp defconfig .config

vi .config

CROSS= /usr/local/arm/arm-arago-linux-gnueabi/bin/arm-arago-linux-gnueabi-

CC=${CROSS}gcc

CFLAGS+=-I/usr/loacal/ssl/include/

LDFLAGS+=-L/usr/loacal/ssl/lib/

CFLAGS += -I/usr/local/arm/arm-arago-linux-gnueabi/usr/include/

LIBS += -L/usr/local/arm/arm-arago-linux-gnueabi/usr/lib/

make

四、连接网络

4.1 STAION模式

insmod 8192cu.ko

ifconfig wlan0 up

iwconfig wlan0 essid CCC CCC wifi名称

wpa_passphrase CCC 12345678

network={

ssid="CCC"

#psk="12345678"

psk=e2815ba1cc2e174c517a2793f98b5c2824f5590d73df6f7079bdf6b49d786235

}

vi /etc/wpa_supplicant.conf

ctrl_interface=/var/run/wpa_supplicant

network={

ssid="CCC"

scan_ssid=1

key_mgmt=WPA-EAP WPA-PSK IEEE8021X NONE

proto=WPA

pairwise=TKIP CCMP

group=CCMP TKIP WEP104 WEP40

#psk="12345678"

psk=e2815ba1cc2e174c517a2793f98b5c2824f5590d73df6f7079bdf6b49d786235

}

连接

wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf -B

自动获取ip

udhcpc -i wlan0

需要创建var/lib/misc/udhcpd.leases这个文件

Sending select for 192.168.0.144...

Lease of 192.168.0.144 obtained, lease time 7200

RTNETLINK answers: File exists

adding dns 192.168.0.1

ping -I wlan0 192.168.1.1 #ping路由

64 bytes from 192.168.1.1: seq=3 ttl=63 time=38.078 ms

64 bytes from 192.168.1.1: seq=4 ttl=63 time=123.281 ms

64 bytes from 192.168.1.1: seq=5 ttl=63 time=20.937 ms

4.2 AP模式

连接

insmod 8192cu.ko

hostapd -B /etc/hostapd.conf

ifconfig wlan0 192.168.3.1

udhcpd /etc/udhcpd.conf

ping -I wlan0 192.168.3.20

问题：

一开始使用的是wpa_supplicant-2.3

报错：

/work/debug/test/wirless/wpa_supplicant-2.3/wpa_supplicant/../src/drivers/driver_nl80211.c:10989: undefined reference to `genlmsg_attrdata'

/work/debug/test/wirless/wpa_supplicant-2.3/wpa_supplicant/../src/drivers/driver_nl80211.c:10989: undefined reference to `genlmsg_attrlen'

../src/drivers/driver_nl80211.o: In function `protocol_feature_handler':

/work/debug/test/wirless/wpa_supplicant-2.3/wpa_supplicant/../src/drivers/driver_nl80211.c:3461: undefined reference to `genlmsg_attrdata'

/work/debug/test/wirless/wpa_supplicant-2.3/wpa_supplicant/../src/drivers/driver_nl80211.c:3461: undefined reference to `genlmsg_attrlen'

../src/drivers/driver_nl80211.o: In function `get_sta_handler':

/work/debug/test/wirless/wpa_supplicant-2.3/wpa_supplicant/../src/drivers/driver_nl80211.c:9654: undefined reference to `genlmsg_attrdata'

/work/debug/test/wirless/wpa_supplicant-2.3/wpa_supplicant/../src/drivers/driver_nl80211.c:9654: undefined reference to `genlmsg_attrlen'

此时需要修改.config文件

# Use libnl v2.0 (or 3.0) libraries.

# CONFIG_LIBNL20=y

# Use libnl 3.2 libraries (if this is selected, CONFIG_LIBNL20 is ignored)

# CONFIG_LIBNL32=y

去掉CONFIG_LIBNL20、CONFIG_LIBNL32前面的#

重新编译又出现报错：

arm-arago-linux-gnueabi/bin/ld: cannot find -lnl-3

修改.config

CONFIG_LIBNL32 改为 #CONFIG_LIBNL32 这个#不能去掉

执行wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf -B

Successfully initialized wpa_supplicant nl80211: 'nl80211' generic netlink not found Failed to initialize driver 'nl80211'

最后将wpa_supplicant 版本更换成wpa_supplicant-0.7.3，再编译没有问题

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