由于笔记本没有自带无线网卡，所以买了一块fast FW150US USB无线网卡。该网卡只自带了window下的驱动，经过一番折腾，终于安装好了Linux下的驱动，在此记录以便以后遇到同样问题能够快速解决。

首先查看网卡型号，如下：

root@yongmi-hn:~# lsusb

Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 005 Device 002: ID 046d:c52f Logitech, Inc. Wireless Mouse M305

Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 002 Device 002: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

详细信息：

root@yongmi-hn:~# lsusb -v -d 0bda:8176

Bus 002 Device 002: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN

Device Descriptor:

bLength 18

bDescriptorType 1

bcdUSB 2.00

bDeviceClass 0 (Defined at Interface level)

bDeviceSubClass 0

bDeviceProtocol 0

bMaxPacketSize0 64

idVendor 0x0bda Realtek Semiconductor Corp.

idProduct 0x8176 RTL8188CUS 802.11n WLAN

bcdDevice 2.00

iManufacturer 1 Realtek

iProduct 2 802.11n WLAN Adapter

iSerial 3 00e04c000001

bNumConfigurations 1

Configuration Descriptor:

bLength 9

bDescriptorType 2

wTotalLength 46

bNumInterfaces 1

bConfigurationValue 1

iConfiguration 0

bmAttributes 0x80

(Bus Powered)

MaxPower 500mA

Interface Descriptor:

bLength 9

bDescriptorType 4

bInterfaceNumber 0

bAlternateSetting 0

bNumEndpoints 4

bInterfaceClass 255 Vendor Specific Class

bInterfaceSubClass 255 Vendor Specific Subclass

bInterfaceProtocol 255 Vendor Specific Protocol

iInterface 0

Endpoint Descriptor:

bLength 7

bDescriptorType 5

bEndpointAddress 0x81 EP 1 IN

bmAttributes 2

Transfer Type Bulk

Synch Type None

Usage Type Data

wMaxPacketSize 0x0200 1x 512 bytes

bInterval 0

Endpoint Descriptor:

bLength 7

bDescriptorType 5

bEndpointAddress 0x02 EP 2 OUT

bmAttributes 2

Transfer Type Bulk

Synch Type None

Usage Type Data

wMaxPacketSize 0x0200 1x 512 bytes

bInterval 0

Endpoint Descriptor:

bLength 7

bDescriptorType 5

bEndpointAddress 0x03 EP 3 OUT

bmAttributes 2

Transfer Type Bulk

Synch Type None

Usage Type Data

wMaxPacketSize 0x0200 1x 512 bytes

bInterval 0

Endpoint Descriptor:

bLength 7

bDescriptorType 5

bEndpointAddress 0x84 EP 4 IN

bmAttributes 3

Transfer Type Interrupt

Synch Type None

Usage Type Data

wMaxPacketSize 0x0040 1x 64 bytes

bInterval 1

Device Qualifier (for other device speed):

bLength 10

bDescriptorType 6

bcdUSB 2.00

bDeviceClass 0 (Defined at Interface level)

bDeviceSubClass 0

bDeviceProtocol 0

bMaxPacketSize0 64

bNumConfigurations 1

Device Status: 0x0000

(Bus Powered)

在此看到芯片型号为RTL8188CUS，使用google可以找到该芯片驱动下载地址：

http://www.realtek.com/downloads/downloadsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&ProdID=274&DownTypeID=3&GetDown=false&Downloads=true#2742

此时剩下的就是下载代码，编译，安装，重启系统即可。

之前担心找不到Linux下驱动，现在已经安装好驱动并发表该博文，又一次感受到Linxu的强大，一定要学好Linux！

今天(2012-12-15)新编译并安装了内核2.6.34.13，直接在原来编译基础上make install安装驱动，重启系统之后发现usb无线驱动不工作。原来驱动程序都是直接依赖内核代码的，内核换了，需要重新make才行。卸掉原来驱动，重新make，make install之后usb无线网卡工作正常。

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2012-12-02  第一次完成

2012-12-15  增加新编译内核网卡不工作解决方法