[Click] RSSI values reported by click printwifi

[Robert Owen]

Hi all,

I'm using click to collect RSSI measurements. I can get the numbers (in
range of 10~50) from printwifi, but am not sure what the numbers mean.
>From what I know, Atheros chipset has a RSSI_MAX = 60. If a RSSI value is a
%, then the real value is %*60.
Can anyone verify whether the numbers are the percentages, or the real
values after multiplying by 60, or in some other units such as dB?
Also I want to know how click/madwifi obtains the RSSI info from the card.
Can anyone point to me the relevant code?

Thank you!