SliTaz Forum

datto

Member

Registered: 2012-11-26

Posts: 6

How to Turn off radio of a specific wifi interface ?

Hi All,

I have two wifi interfaces on my laptop (one build in and one pcmcia card) and I would like to turn off the internal one.

Any idea on how to do that ? Both are using the same b43 module and I cannot turn it off  from Bios.

I have a side question, how to determine which interfaces (wlan0 and wlan1) is  using which hardware ?

Thanks in advance.

Datto

gdesilva

Member

Registered: 2011-04-07

Posts: 419

Re: How to Turn off radio of a specific wifi interface ?

As root, run 'ifconfig wlan0 down' to shutdown wlan0 - or wlan1 to shutdown the other interface and 'arp -a' will show which mac address is associated with which interface. There is also the system information app (under System Tools) which will give you details of your hardware addresses etc.

EDIT: Alternatively, install lshw package (if you haven't already done so) and run lshw command which will give you the device name associated with the wireless card name.

datto

Member

Registered: 2012-11-26

Posts: 6

Re: How to Turn off radio of a specific wifi interface ?

I couldn't find a proper solution to turn off the radio. Maybe the driver does not allow it. I could disable the interface, good enought for now...

sma

gibor

Moderator

Registered: 2011-04-30

Posts: 1,067

Re: How to Turn off radio of a specific wifi interface ?

rfkill ?

http://linux.die.net/man/1/rfkill