HI,have a my wireless card but not working in centos...please help me for setup,establishing.

Command...

Use the command "lspci" to identify the chip used in the wireless card, find the right item on the resulting list, and use it to search the Internet for your next step.

If you already know what chip you have and have configured it, do you see that a driver module is being loaded? Use the command "lsmod" or "dmesg" to see what is being loaded for wireless function.

You haven't posted very much information, nor anything about what you've already tried in attempting to solve your problem.

Which edition of CentOS are you using and on what system?

Being a reply of Rhel , the original system has been developed for server use so for cable lan more than wi-fi. I don't know if CentOs developed some drivers for wifi, i just remember on Rhel it was a bit difficult unless you've got a specific card.

Follow the commands you've been suggested for to improve diagnose and help you.

Is your wireless card connected via motherboard or usb? lsusb option will tell you more about the second instance.

my laptop name: Toshiba satellite c660-A253

Maybe could be handy

http://intellinuxwireless.org/?n=downloads

For some...

The Internet tells me that some models of the Toshiba C660 use a Realtek chip but others use Broadcom. I couldn't find your model. You need the results of "lspci".

Thanks everybody i solved this problem