I have produced a script to allow automatic installation of the drivers for Realtek RTL8188CUS based wifi adapters and a document giving instructions on how to use it. The script is rather crude but does the job pretty well I think.
All you have to do is edit the script to add your own SSID and PASSWORD and then run a single command. The rest is done automatically by the script. Very simple and it only takes a couple of minutes to get the Pi up and running with wifi.
I use a Micronet Wireless LAN USB Adapter Model No: SP907NS which uses the Realtek RTL8188CUS device.
Wifi adapters I've found using this chip are:
050d:1102 F7D1102 N150/Surf Micro Wireless Adapter v1000 [Realtek RTL8188CUS] - (Belkin Components)
06f8:e033 Hercules HWNUp-150 802.11n Wireless N Pico [Realtek RTL8188CUS] - (Guillemot Corp.)
0846:9041 WNA1000M 802.11bgn [Realtek RTL8188CUS] - (NetGear, Inc.)
0bda:8176 RTL8188CUS 802.11n WLAN Adapter - (Realtek Semiconductor Corp.)
2001:3308 DWA-121 802.11n Wireless N 150 Pico Adapter [Realtek RTL8188CUS] - (D-Link Corp.)
2019:ab2a GW-USNano2 802.11n Wireless Adapter [Realtek RTL8188CUS] - (PLANEX)
2019:ed17 GW-USValue-EZ 802.11n Wireless Adapter [Realtek RTL8188CUS] - (PLANEX)
20f4:648b TEW-648UBM 802.11n 150Mbps Micro Wireless N Adapter [Realtek RTL8188CUS] - (TRENDnet)
7392:7811 EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS] - (Edimax Technology Co., Ltd)
I have only tried it with my device which work a treate. Don't know if it will work with any other ones but I don't see why it shouldn't.
The instructions are available at: http://dl.dropbox.com/u/80256631/install-rtl8188cus.txt
and the script at http://dl.dropbox.com/u/80256631/install-rtl8188cus.sh
The nice thing about this installation is that you do not need an internet connection to your Pi to install the wifi drivers. So you can forget about having to use a network wired cable.
However, after the driver is loaded the script continues on and loads some updates via the wifi, the additional updates are for DHCP and rpi-update by Hexxeh. rpi-update is used to automatically update the Pi's firmware and software.
If you try it let me know how you get on and which wifi adapter you are using.
Simplicity is a prerequisite for reliability. Edsger W. Dijkstra
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