- 驱动的移植
- 交叉编译WIFI原厂固件驱动
根据网上资料，和官方文档编译成功。
- 修改Makefile
- 修改交叉编译环境
- 执行 make
编译成功，生成88x2bu.ko
- 加载原厂驱动
Insmod 88x2bu.ko
生成wlan0
- Hostapd工具移植生成可连接热点AP
- 安装libnl库
-
- 使用命令tar -xvf libnl-1.1.tar.gz解压我们提供的libnl-1.1.tar.gz
- 进入libnl-1.1目录下执行./configure --prefix=/usr/local/libnl
- 在libnl-1.1/include/netlink-local.h中添加头文件#include <limits.h>
- 运行make CC=aarch64-linux-gnu-gcc
- 运行make install
-
- 编译hostapd
进入wpa_supplicant_8_kk_4.4_rtw_r24640.20171025/hostapd目录下编辑此目录下的.config文件
-
- 在.config文件中添加如下内容
LIBNL=/usr/local/libnl
CFLAGS += -I$(LIBNL)/include
LIBS += -L$(LIBNL)/lib
-
- 在该hostapd目录下执行make
-
- 运行配置
./hostapd rtl_hostapd_5G.conf –B
配置文件rtl_hostapd_5G.conf如下所示。
##### hostapd configuration file ##############################################
interface=wlan0
#ctrl_interface=/var/run/hostapd
ssid=rtwap
channel=36
wpa=2
wpa_passphrase=87654321
#bridge=br0
##### Wi-Fi Protected Setup (WPS) #############################################
eap_server=1
# WPS state
# 0 = WPS disabled (default)
# 1 = WPS enabled, not configured
# 2 = WPS enabled, configured
wps_state=2
uuid=12345678-9abc-def0-1234-56789abcdef0
# Device Name
# User-friendly description of device; up to 32 octets encoded in UTF-8
device_name=RTL8192CU
# Manufacturer
# The manufacturer of the device (up to 64 ASCII characters)
manufacturer=Realtek
# Model Name
# Model of the device (up to 32 ASCII characters)
model_name=RTW_SOFTAP
# Model Number
# Additional device description (up to 32 ASCII characters)
model_number=WLAN_CU
# Serial Number
# Serial number of the device (up to 32 characters)
serial_number=12345
# Primary Device Type
# Used format: <categ>-<OUI>-<subcateg>
# categ = Category as an integer value
# OUI = OUI and type octet as a 4-octet hex-encoded value; 0050F204 for
# default WPS OUI
# subcateg = OUI-specific Sub Category as an integer value
# Examples:
# 1-0050F204-1 (Computer / PC)
# 1-0050F204-2 (Computer / Server)
# 5-0050F204-1 (Storage / NAS)
# 6-0050F204-1 (Network Infrastructure / AP)
device_type=6-0050F204-1
# OS Version
# 4-octet operating system version number (hex string)
os_version=01020300
# Config Methods
# List of the supported configuration methods
config_methods=label display push_button keypad
##### default configuration #######################################
driver=nl80211
beacon_int=100
hw_mode=a
ieee80211n=1
wme_enabled=1
ht_capab=[SHORT-GI-20][SHORT-GI-40][HT40+]
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP
max_num_sta=8
wpa_group_rekey=86400
- DHCP配置
./hostapd rtl_hostapd_5G.conf -B 正常的话，是可以成功生成AP热点。用电脑和手机可以正常搜到。不过不能分配IP。就是因为没有进行dhcp的原因。
配置步骤如下。
- 设置wlan0 ip
ifconfig wlan0 192.168.2.1
- 启动wlan0
ifconfig wlan0 up
- 新建配置文件
网上查资料，需要配置文件，才能用udhcpd 工具配置。网上复制一个配置文件，尝试配置，成功了。
注意配置文件的IP区间是在之前ifconfig wlan0 192.168.2.1 的同一个网段。
把下面的复制到配置新建的配置文件udhcpd.conf里。把配置文件拷贝到/etc/下。
# Sample udhcpd configuration file (/etc/udhcpd.conf)
# The start and end of the IP lease block
start 192.168.2.2 #default: 192.168.0.20
end 192.168.2.254 #default: 192.168.0.254
# The interface that udhcpd will use
interface wlan0 #default: eth0
# The maximim number of leases (includes addressesd reserved
# by OFFER's, DECLINE's, and ARP conficts
max_leases 253 #default: 254
# If remaining is true (default), udhcpd will store the time
# remaining for each lease in the udhcpd leases file. This is
# for embedded systems that cannot keep time between reboots.
# If you set remaining to no, the absolute time that the lease
# expires at will be stored in the dhcpd.leases file.
remaining yes #default: yes
# The time period at which udhcpd will write out a dhcpd.leases
# file. If this is 0, udhcpd will never automatically write a
# lease file. (specified in seconds)
auto_time 7200 #default: 7200 (2 hours)
# The amount of time that an IP will be reserved (leased) for if a
# DHCP decline message is received (seconds).
decline_time 3600 #default: 3600 (1 hour)
# The amount of time that an IP will be reserved (leased) for if an
# ARP conflct occurs. (seconds
conflict_time 3600 #default: 3600 (1 hour)
# How long an offered address is reserved (leased) in seconds
offer_time 60 #default: 60 (1 minute)
# If a lease to be given is below this value, the full lease time is
# instead used (seconds).
min_lease 60 #defult: 60
# The location of the leases file
lease_file /var/lib/misc/udhcpd.leases #defualt: /var/lib/misc/udhcpd.leases
# The location of the pid file
pidfile /var/run/udhcpd-wlan2.pid #default: /var/run/udhcpd.pid
# Every time udhcpd writes a leases file, the below script will be called.
# Useful for writing the lease file to flash every few hours.
#notify_file #default: (no script)
#notify_file dumpleases # <--- useful for debugging
# The following are bootp specific options, setable by udhcpd.
#siaddr 192.168.0.22 #default: 0.0.0.0
#sname zorak #default: (none)
#boot_file /var/nfs_root #default: (none)
# The remainer of options are DHCP options and can be specifed with the
# keyword 'opt' or 'option'. If an option can take multiple items, such
# as the dns option, they can be listed on the same line, or multiple
# lines. The only option with a default is 'lease'.
#Examles
opt dns 114.114.114.114 #192.168.2.1
option subnet 255.255.255.0
option domain local #atherosowl.com
option lease 864000 # 10 days of seconds
# Currently supported options, for more info, see options.c
#opt subnet
#opt timezone
opt router 192.168.2.1
#opt timesvr
#opt namesvr
#opt dns
#opt logsvr
#opt cookiesvr
#opt lprsvr
#opt bootsize
#opt domain
#opt swapsvr
#opt rootpath
#opt ipttl
#opt mtu
#opt broadcast
#opt wins
#opt lease
#opt ntpsrv
#opt tftp
#opt bootfile
# Static leases map
#static_lease 00:60:08:11:CE:4E 192.168.0.54
#static_lease 00:60:08:11:CE:3E 192.168.0.44
- 运行配置命令
先ps看一下后台有没有udhcpd和hostapd程序在执行
有的话就killall udhcpd 或者 killall hostapd给关掉
Udhcpd udhcpd.conf
或者
udhcpd -fS /etc/udhcpd.conf &
hostapd -B /etc/hostapd.conf
执行这两个程序，可能udhcpd会报如下的错误，在相应目录新建一个对应名字文件即可
root@ti81xx:~# udhcpd (v1.19.4) started
udhcpd: can't open '/var/lib/misc/udhcpd.leases': No such file or directory
到这一步，就可以用电脑连接模块生成的AP了。并且可以自动获取IP了。可以ping通板子，也可以通过ssh远程连接板子了。
