wpa supplicant auto roaming

[Sourav]

Is auto roaming currently supported by wpa_supplicant .....if so then 
what is the logic that it follows for roaming from one AP to another?
Also is roaming between 2 APs with different SSIDs supported? Can you 
point me to the code where auto roaming is implemented in wpa_supplicant 
codebase?

-- 
Warm Regards,
Sourav


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