Hi Manikanta, > By the way, userspace itself selects the frequencies to scan, not the > driver. > > If we see the split scan implementation in cfg80211, this is the how > it > is implemented. If NL80211_SCAN_FLAG_COLOCATED_6GHZ is set, it > selects > all PSC channels and those non-PSC channels where RNR IE information > is > found in the legacy scan results. If this flag is not set, all > channels > in 6 GHz are included in the scan freq list. It is upto userspace to > decide what it wants. This isn't your problem, but it needs to be said: The nl80211 docs need and update to reflect this behavior (or remove the PSC logic). IMO this is really weird that the kernel selects PSC's based on the co-located flag. The docs don't describe this behavior and the flag's name is misleading (its not SCAN_FLAG_COLOCATED_AND_PSC_6GHZ) :) If userspace doesn't specify a channel list then the kernel can do whatever it wants, but otherwise it should stick to the requested channels and scan only for co-located APs if the flag was set, not PSC's too. This basically adds ~3x the time to IWD's quick scan's for 6GHz capable cards regardless if there are any co-located AP's. ugh.
