View source for Rock/Wireless/AP mode manually

==== AP mode(RR acts as wireless router) ====

Below is how to manually configure wifi as AP mode on RR.

====Prepare works====

1.1 Compile hostapd

 wget http://dl.radxa.com/rock/source/RTL8723A_WiFi_linux_v4.1.7_8023_BTCOEX20130528_ver3.3_beta.rar
 sudo apt-get install unrar
 unrar x RTL8723A_WiFi_linux_v4.1.7_8023_BTCOEX20130528_ver3.3_beta.rar
 sudo apt-get install build-essential
 cd RTL8723A_WiFi_linux_v4.1.7_8023_BTCOEX20130528_ver3.3_beta/
 cd wpa_supplicant_hostapd/
 tar xzf wpa_supplicant_hostapd-0.8_rtw_r7048.20130424.tar.gz
 cd wpa_supplicant_hostapd-0.8_rtw_r7048.20130424/hostapd
 make
 sudo make install
 sudo mkdir -p /etc/hostapd

1.2 [[Rock/install toolchain|Install toolchain]].

1.3 Download the kernel from the address:
root@radxa:/tmp# git clone -b radxa-stable-3.0 https://github.com/radxa/linux-rockchip.git

or download here

http://pan.baidu.com/s/1jfOTo  (china)

====Compile the driver====

=====Attention please： first,ensure your kernel has been compiled=====

 unrar x RTL8723A_WiFi_linux_v4.1.7_8023_BTCOEX20130528_ver3.3_beta.rar
 cd RTL8723A_WiFi_linux_v4.1.7_8023_BTCOEX20130528_ver3.3_beta
 cd driver
 tar zxvf rtl8723A_WiFi_linux_v4.1.7_8023.20130628_BTCOEX20130528_ver3.3_beta.tar.gz
 cd rtl8723A_WiFi_linux_v4.1.7_8023.20130628_BTCOEX20130528_ver3.3_beta
 vim Makefile

=====To select target platform for compilation===== 

 47 CONFIG_PLATFORM_I386_PC = n
 '''48 CONFIG_PTFORM_ANDROID_X86 = n'''
 49 CONFIG_PLATFORM_JB_X86 = n
 ...
 ...
 66 CONFIG_PLATFORM_ARM_TCC8920_JB42 = n
 '''67 CONFIG_PLATFORM_ARM_RK2818 = y'''
 68 CONFIG_PLATFORM_ARM_URBETTER = n
 ...
 ...
 '''603 ARCH := arm'''     #the architecture of the CPU.
 '''604 CROSS_COMPILE := arm-eabi-'''    # the toolchain prefix
 '''605 KSRC := /media/jim/radxa_rock_linux/linux-rockchip'''   # the path of kernel source

=====Build wifi driver=====
root@radxa:/tmp/driver/rtl8723A_Wi...3.3_beta# '''make'''

root@radxa:~# '''rm /lib/modules/3.0.36+/kernel/drivers/net/wireless/rtl8723au_lwfinger/8723au.ko'''

root@radxa:~# '''cp wlan.ko /lib/modules/3.0.36+/kernel/drivers/net/wireless/rtl8723au_lwfinger'''

root@radxa:~# '''reboot'''

=====Configure dhcp server,wifi(user,password),autorun the softAP=====

=====3.1 Configure static IP=====
 root@radxa:/etc#vim /etc/network/interfaces
 auto wlan0
 iface wlan0 inet static
 address 192.168.2.1
 netmask 255.255.255.0

=====3.2 Configure the dhcp server=====

root@radxa:/etc# '''apt-get install dnsmasq'''

root@radxa:/etc# '''vim dnsmasq.conf'''

 interface=wlan0 
 bind-interfaces 
 except-interface=lo  
 dhcp-range=192.168.2.150,192.168.2.254,12h  #configure the range of available ip
 dhcp-option=3,192.168.2.1  #configure the server

=====3.3 Make your network faster=====

root@radxa:/etc# '''apt-get install haveged'''

=====3.4  Configure the wifi(user,password):=====

root@radxa:/etc# '''cp /tmp/RTL8723A_WiFi_/wpa_supplicant_hostapd/rtl_hostapd_2G.conf  /etc/hostapd/hostapd.conf'''

root@radxa:/etc# '''vim /etc/hostapd/hostapd.conf'''

 interface=wlan0
 ctrl_interface=/var/run/hostapd
 ssid="user-name"
 channel=6
 wpa=2
 wpa_passphrase="password"
 #bridge=br0

=====3.5 Autorun your softAP:=====

root@radxa:/etc# '''vim wifs.sh'''

 #!/bin/sh
 #start the AP service
 #Start hostapd, and it will automatically be bringed up 
 sudo hostapd -B /etc/hostapd/hostapd.conf
 #Set ip on wlan0 
 sudo /sbin/ip addr add 192.168.2.1/24 dev wlan0
 #Start dnsmasq 
 sudo /usr/sbin/service dnsmasq start
 #Start ip_forward 
 sudo echo 1 > /proc/sys/net/ipv4/ip_forward
 #add iptables rule for NAT 
 sudo /sbin/iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
 #start haveged
 sudo /etc/init.d/haveged start

root@radxa# '''vim /etc/rc.local'''

 '''/etc/wifs.sh'''
 /lib/init/vars.sh
 /lib/lsb/init-functions

root@radxa# reboot