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jim

Enable the wireless AP function on pcDuino V2

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pcDuino V2 has an on board wifi module already, the part number of this wifi module is rtl8188cus, which is different from the previous module rt5370st, after some research, this new wifi module also has AP function. Many people have done AP function with rtl8188 on Raspberry Pi, but it’s not working on pcDuino with the same method. In this tutorial, we are going to teach you how to enable wireless AP function on pcDuino V2.

 

Download software

1.Download tools software:

sudo apt-get update

sudo apt-get install git vim

sudo apt-get install isc-dhcp-server

2. Download source code for driver from official website:

wget ftp://WebUser:Lc9FuH5r@58.211.24.153/cn/wlan/RTL8188C_8192C_USB_linux_v4.0.2_9000.20130911.zip

#http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&DownTypeID=3&GetDown=false&Downloads=true#2742

3.Download header file for compiling the driver:

sudo apt-get install pcduino-linux-headers-3.4.29+      

cd  /usr/src/ linux-headers-3.4.29+/arch

cp  arm  armv7l  -rf

Note:  You will need to restart it after this line if you are using pcDuino Lite wifi, wait at the 3 second under u-boot, enter it, otherwise it can not be started properly.

setenv loglevel 8 ramfs

boot

mount  /deV/nandd /mnt

cd  /mn lib/modules/3.4.29+/kernel/drivers

rm gpu –rf

reboot

4. Delete original “8188cu.ko”:

rm  /lib/modules/3.4.29+/kernel/drivers/net/wireless/rtl8192cu/8192cu.ko

rm  /lib/modules/3.4.29+/kernel/drivers/net/wireless/8192cu.ko

5. Compile installing driver:

unzip  RTL8188C_8192C_USB_linux_v4.0.2_9000.20130911.zip

cd   RTL8188C_8192C_USB_linux_v4.0.2_9000.20130911

chmod +x install.sh

sudo ./install.sh

6. Installation finished:

ubuntu@ubuntu:~/RTL8188C_8192C_USB_linux_v4.0.2_9000.20130911$ lsmod

Module                  Size  Used by

8192cu                624916  0

sw_interrupt            2424  0

gpio                    4509  0

pwm                     5050  0

adc                     1671  0

hardwarelib             1551  4 sw_interrupt,gpio,pwm,adc

rt5370sta             616973  0


Hostapd

The built in hostapd in driver can’t support system service, now thanks to open source, some maker has made it system service supportive.

git clone https://github.com/jenssegers/RTL8188-hostapd

cd RTL8188-hostapd/hostapd

sudo make install

Install 8188′s hostapd:

cd  RTL8188C_8192C_USB_linux_v4.0.2_9000.20130911/wpa_supplicant_hostapd

tar xvf wpa_supplicant_hostapd-0.8_rtw_r7475.20130812.tar.gz

cd  hostapd

sudo make install

Configure hostapd:

vim  /etc/hostapd/hostapd.conf

# Basic configuration

 

interface=wlan3  #it depends on your own connection

ssid=wifi

channel=1

#bridge=br0

 

# WPA and WPA2 configuration

 

macaddr_acl=0

auth_algs=1

ignore_broadcast_ssid=0

wpa=3

wpa_passphrase=12345678

wpa_key_mgmt=WPA-PSK

wpa_pairwise=TKIP

rsn_pairwise=CCMP

 

# Hardware configuration

 

driver=rtl871xdrv

ieee80211n=1

hw_mode=g

device_name=RTL8192CU

manufacturer=Realtek

 

service hostapd restart

Name this wifi AP as wifi, password as 12345678

Now you need to reset your wifi password, and you can find this wifi available, but if it’s not working, you need to configure your internet.

vim /etc/network/interfaces

auto wlan3

iface wlan3 inet static

        address 192.168.100.1

        netmask 255.255.255.0              

service networking restart

Configure dhcp:

vim /etc/dhcp/dhcpd.conf #add it in the end

subnet 192.168.100.0 netmask 255.255.255.0 {

  range 192.168.100.10 192.168.100.100;

  option routers 192.168.100.1;

  option domain-name-servers 8.8.8.8;

}

service isc-dhcp-server restart

Set up startups

Dhcpd can start after hostapd started, hostapd can shut down after dhcpd shut down.

update-rc.d hostapd defaults 80 20

update-rc.d isc-dhcp-server defaults 90 10

 

 

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