Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you about the driver installation and basic operation commands of the wireless network card in CentOS. The article is rich in content and analyzes and describes for you from a professional point of view. I hope you can get something after reading this article.

1. Installation

Enter a command

The code is as follows:

Lsusb

You can see that the USB wireless network card is

Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter

First download the driver installation package: 8188cus

Http://218.210.127.131/downloads/downloadsView.aspx? Langid=1&PNid=48&PFid=48&Level=5&Conn=4&DownTypeID=3&GetDown=false&Downloads=true#RTL8188CUS

After downloading, copy it to the flash drive. The flash drive here is in fat32 format, while the NFTS format needs to be packaged separately.

Linux mount (fat32) USB disk:

Create a usb directory under the mnt directory

The code is as follows:

Mkdir / mnt/usb

Mount-t vfat / dev/sda1 / mnt/usb

Execute after completion (uninstall USB disk: umount / mnt/usb delete usb directory: rm-rf / mnt/usb)

Extract and compile:

The code is as follows:

Unzip + file name

Enter the folder

The code is as follows:

Make

Make install

Or... / install

Or read README and follow the prompts.

The operation failed:

The following error occurred:

Make: * / lib/modules/2.6.32-431.el6.x86q64buildUniverse: No such file or directory. Stop.

The problem should be that the kernel development package is not installed on the system, you can take a look at / usr/src/kernels/

If this directory is empty, the kernel development package is not installed

The code is as follows:

Yum install kernel-devel

If this directory is not empty, you need to redo the connection:

The code is as follows:

[root@localhost ~] # cd / lib/modules/2.6.32-431.el6.x86_64

[root@localhost 2.6.32-431.el6.x86_64] # ln-s. / . . / . . / usr/src/kernels/2.6.32-431.el6.x86_64/build

Then re-execute make & make install.

two。 Common operation

(1) first close the wired network card of the development board

The code is as follows:

[root@FriendlyARM /] # ifconfig eth0 down

(2) load USB WiFi wireless network card

The code is as follows:

[root@FriendlyARM /] # ifconfig wlan0 up

(3) scan available wireless networks

The code is as follows:

[root@FriendlyARM /] # iwlist scanning | grep ESSID

Lo Interface doesn't support scanning.

Eth0 Interface doesn't support scanning.

Wmaster0 Interface doesn't support scanning.

ESSID: "FRIENDLY-ARM"

ESSID: "NETGEAR"

ESSID: "TP-LINK"

(4) Select the wireless network to connect to

The code is as follows:

[root@FriendlyARM /] # iwconfig wlan0 essid "FRIENDLY-ARM"

(5) enter the security password of the network

The code is as follows:

[root@FriendlyARM /] # iwconfig wlan0 key s:12345

(6) Connect to the specified AP (wireless routing)

The code is as follows:

[root@FriendlyARM /] # iwconfig wlan0 ap auto

(7) set the IP address of the wireless network card

The code is as follows:

[root@FriendlyARM /] # ifconfig wlan0 192.168.1.120

(8) use ping command to detect wireless network connectivity.

The code is as follows:

[root@FriendlyARM /] # ping 192.168.1.1

PING 192.168.1.1 (192.168.1.1): 56 data bytes

64 bytes from 192.168.1.1: seq=0 ttl=64 time=42.804 ms

64 bytes from 192.168.1.1: seq=1 ttl=64 time=5.020 ms

.

The above is the driver installation and basic operation commands of the wireless network card in CentOS shared by Xiaobian. If you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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