Tp-link USB WLAN: Configuration Problem in linux 2.6.19

[ravis]

Hello,

I have been working wiith USB WiFi in my custom designed board, which follows AT91RM9200Ek design.

I'm using TP-LINK (TL-WN321G) USB wireless Adaptor. I have built the driver for TP-Link under linux kernel version of 2.6.19.

After booting linux,

i have given "iwconfig" command , the following messages displayed on terminal.

Warning: Driver for device rausb0 has been compiled with version 21
of Wireless Extension, while this program supports up to version 17.
Some things may be broken...

rausb0 RT73 WLAN ESSID:"MSHOME" Nickname:""
Mode:Managed Frequency=2.437 GHz Bit Rate=54 Mb/s
RTS thr:off Fragment thr:off
Encryption key:off
Link Quality=0/100 Signal level:-121 dBm Noise level:-115 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

What could be the problem?

Please help me.

Thanks in advance.

Regards
Ravi Shankar.S