Received signal strength

[Hongwei Zhang]

>yes... I'm interested in everything involving power control. In addition to
>sensitivity, I'd also like to get trustworthy data of received and
>transmitted signal. What documentation/patches/etc. should I apply?
>
To follow up on this question list :), is there anyway to get these data 
(i.e., send/receive signal strength, signal-to-noise ratio, etc.) 
dynamically in a C program?

Thanks,

Hongwei