Is it possible to know rssi?

[Dan Williams]

On Thu, 2008-01-10 at 15:00 +0530, Raghavendra. S wrote:
> Hi All,
> 
>  Is it possible to know RSSI(Received Signal Strength) using wpa supplicant?

Not implemented, and it's sort of pointless to do this with
wpa_supplicant since the information is easily available with other
means that don't involve screenscraping of iw* tools or much of your own
code at all.

I'd recommend periodically poking either:

/sys/class/net/<interface>/wireless/noise
/sys/class/net/<interface>/wireless/link

or use ioctl() with the SIOCGIWSTATS selector.

Dan