Understanding How Networking Manager Manages Wi-Fi

[Ramprasad Vempati <ramprasad vempati gmail com>]

Hi,

I'm interested to understand the flow, in terms of how Network-Manager
controls Wi-Fi. As far as I know Network Manager talks to
wpa_supplicant.

But I'm interested in more details. Like how Network-manager starts
wpa_supplicant?

And another case I would like to understand is, if I kill
wpa_supplicant that's started by Network-Manager and also remove
wpa_supplicant from /sbin, but run wpa_supplicant from another folder,
does Network-manager finds him & tries to control?

I tried google to get this information. But I couldn't find any useful
information.

Can one of you help?

Thanks,
Ram