Hi Mohamed,

> These patches will add fast scan support. This patches changes the way
> we call wpa_supplicant scan. For fast scan request connman will append
> ssids and frequencies for the last four AP's we connected to so 
> supplicat will send active ssid scans only for these frequencies.

so every hardware has a limit on how many SSID it can scan at once and I
think that wpa_supplicant exports this now. We should read that value
and give it a list of SSID in order of last used.

We might wanna consider actually not scanning for SSID and just scanning
the last 4 frequencies. You might wanna run some testing on what is the
most efficient scan time. Feel free to write a small test utility for
that using gsupplicant and put it insider tools directory.

Regards

Marcel


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