树莓派无线网卡 - WiKi Of fbzl

Table of Contents

搭建编译环境及编译驱动
- The first method.
- The second method.
配置运行网卡
The third method
参考资料：
其它

搭建编译环境及编译驱动

The first method.

I use this to compile various modules I use. No need to compile the full linux source, just need to configure it to compile additional modules, takes less than 5 minutes. A full kernel compile can take around 10hrs on a Pi.

create directory for source files in my home directory (/home/pi)

mkdir src

go to source file directory

cd src

download linux source - --depth will restict the amount downloaded as you don't need the whole repository

git clone --depth 500 https://github.com/raspberrypi/linux.git

download firmware source - restrict the amount downloaded with --depth

git clone --depth 20 https://github.com/raspberrypi/firmware.git

set up some symbolic links needed by compile

sudo ln -s /home/pi/src/linux /lib/modules/$(uname -r)/build
sudo ln -s /home/pi/src/linux/arch/arm /home/pi/src/linux/arch/armv6l

enter linux directory

cd linux

set up linux source to 3.12.22+ #690 (git checkout commit-id)
for a different version change the commit-id
for 3.12.22+ #691 use commit-id 1981ddebd4

git checkout 99df631ec3

enter firmware directory and set for 3.12.22+ #690 (git checkout commit-id)
for 3.12.22+ #691 use commit-id 462f3e3f47

cd ../firmware
git checkout 5bb0317210

go back to linux source directory

cd ../linux

set up linux to compile your module - make mrproper: init sourc

make bcmrpi_defconfig: set up .config file
make modules_prepare: compile to set up for module
cp ../firmware/extra/Module.symvers . - copy file Module.symvers from firmware to linux directory

NOTE: period (full stop) after Module.symvers

make mrproper && make bcmrpi_defconfig && make modules_prepare && cp ../firmware/extra/Module.symvers .

now go to your DPO_MT7601U_LinuxSTA_3.0.0.4_20130913 download source directory wherever it is

cd ../DPO_MT7601U_LinuxSTA_3.0.0.4_20130913

init module source and compile it

make clean && make

and hopefully it will compile without errors.

For other versions of linux to find the necessary commit-id's go to https://github.com/raspberrypi/firmware/commits/master and look though the list of firmware commits for one close to your version. Then select browse code (<>) and look at firmware/extra/uname-string to check linux version 3.12.xx+ and build number, #123. When you find the right version and build look at firmware/extra/git_hash for the linux source commit-id. The full commit-id is a 40 character value but you should only need to use the first 7-10 character to set the right source version.

I've had some problems with modules compiled using the default gcc version (4.6) and have updated mine to gcc-4.7 currently. Also to get a different Realtek driver I use to compile I had to make a few changes.

Reference: http://www.raspberrypi.org/forums/viewtopic.php?f=66&t=82811#p587254

The second method.

Downloaded v3.0.0.4 driver from Mediatek
Compiled and installed driver (I had errors during compilation but was able to sort it out.)
ra0 appeared in ifconfig, updated /etc/network/interfaces to include ra0 (copied format of wlan0)
Installed wicd-curses, updated Preference to use ra0 as wireless network.
Wifi signals were detected. Selected desired wifi AP. Input settings for the AP.
Connect!

I downloaded and compiled sources mt7601 v3.0.0.4 from MediaTek http://www.mediatek.com/en/downloads/mt7601u-usb/. It works fine!

I have uploaded binaries compiled for version 3.10.37+. I have uploaded the full folder compiled here.

tar -vxzf mt7601u_3.0.0.4.tar.gz
sudo make install
sudo insmod /lib/modules/3.10.37+/kernel/drivers/net/wireless/mt7601Usta.ko
sudo reboot

The kernel version must be 3.10.27+ #667. If you don't have it, you can upgrade/downgrade executing the commands:

sudo rpi-update bb7abd7d34e758fc97546620128bf67a45016a5f
sudo reboot

Reference: http://www.raspberrypi.org/forums/viewtopic.php?t=49864&p=541423#p541423

配置运行网卡

1.make ra0 appear as wlan0

sudo vi /etc/udev/rules.d/95-ralink.rules

configure interfaces

sudo vi /etc/network/interfaces

with the following:

auto lo

iface lo inet loopback
iface eth0 inet dhcp
allow-hotplug wlan0
iface wlan0 inet manual

wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf

#wireless-power off
iface default inet dhcp
up iwpriv $IFACE set Debug=0

3.Set up wpa_supplicant.conf

sudo vi /etc/wpa_supplicant/wpa_supplicant.conf

with:

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev

ap_scan=1

#update_config=1

network={

    ssid="MYPI"
    psk="ABABABABAB"

    # Protocol type can be: RSN (for WP2) and WPA (for WPA1)
    proto=RSN

    # Key management type can be: WPA-PSK or WPA-EAP (Pre-Shared or Enterprise)
    key_mgmt=WPA-PSK

    # Pairwise can be CCMP or TKIP (for WPA2 or WPA1)
    pairwise=CCMP

    #Authorization option should be OPEN for both WPA1/WPA2 (in less commonly used are SH$
    auth_alg=OPEN

}

Edit RT2870STA.dat

sudo vi /etc/Wireless/RT2870STA/RT2870STA.dat

Ensure you have the following entries:

SSID=MYPI
AuthMode=WPAPSK
EncrypType=AES
WPAPSK=ABABABABAB

The third method

查看USB设备类型

寻找USB无线网卡是否已经被系统识别。

pi@raspberrypi ~ $ lsusb

Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter 《=========

USB无线网卡已经被正常识别

查看内核模块

是否支持你的无线网卡

pi@raspberrypi ~ $ lsmod

Module Size Used by
snd_bcm2835 15846 0
snd_pcm 77560 1 snd_bcm2835
snd_seq 53329 0
snd_timer 19998 2 snd_pcm,snd_seq
snd_seq_device 6438 1 snd_seq
snd 58447 5 snd_bcm2835,snd_timer,snd_pcm,snd_seq,snd_seq_device
snd_page_alloc 5145 1 snd_pcm
leds_gpio 2235 0
led_class 3562 1 leds_gpio
8192cu 489381 0 《========

无线网卡对应的内核模块已经自动加载了。

查看无线设备配置

pi@raspberrypi ~ $ iwconfig

wlan0 unassociated Nickname:”<WIFI@REALTEK>”
Mode:Managed Frequency=2.412 GHz Access Point: Not-Associated
Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

lo no wireless extensions.

eth0 no wireless extensions.

配置网络界面设置

sudo vi /etc/network/interfaces

=====

auto lo
iface lo inet loopback

iface eth0 inet dhcp

auto wlan0
allow-hotplug wlan0
iface wlan0 inet manual
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp

如果你不想设置为Dhcp动态IP，也可以设置静态IP，则文件内容如下：

auto lo
iface lo inet loopback

iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet manual
address 192.168.1.100
netmask 255.255.255.0
gateway 192.168.1.1
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf

其它配置

auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet static
    wpa-ssid 你要连接的wifi-ssid
    wpa-psk 你的wpa连接密码
address 192.168.1.106   # 设定的静态IP地址
netmask 255.255.255.0   # 网络掩码
gateway 192.168.1.1     # 网关
network 192.168.1.1     # 网络地址
#wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp

配置无线网卡设置文件

sudo vi /etc/wpa_supplicant/wpa_supplicant.conf

注意主要修改IFI接入点名称和WIFI接入密码。

network={
    ssid="WIFI接入点名称
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=CCMP TKIP
    group=CCMP TKIP
    psk="WIFI接入密码"
}

重启树莓派

sudo reboot

Reference: http://www.2fz1.com/?cat=91

参考资料：

http://www.raspberrypi.org/forums/viewtopic.php?f=66&t=82811

https://github.com/raspberrypi/firmware/commits/master

利用360wifi实现树莓派无线上网 http://my.oschina.net/u/1045794/blog/206453 未实验

在Linux下使用360随身WiFi 2 http://www.freemindworld.com/blog/2013/131010_360_wifi_in_linux.shtml

小米随身WiFi，Linux下AP热点驱动 http://blog.csdn.net/sumang_87/article/details/38168877

在Raspberry上使用小度WIFI http://www.cnblogs.com/hamwolf/archive/2013/11/07/3412231.html

其它

ls文件大小

ls -l --block-size=M