On 8/4/2018 3:08 PM, Dan Kosek wrote:
If you enter the following command, you should get a single channel scan: sudo iw wlan0 scan freq 2412 You do not. Instead you get a full (all) channels scan, which takes 3-5 seconds.
Do you have any logs to support that claim. Please note that the command returns all BSS-es that are listed in wireless subsystem, ie. in cfg80211. That includes BSS-es found in previous scans unless their lifetime expired. What happens if you do...
$ sudo iw wlan0 scan freq 2412 flush
This has been tested on Raspberry Pi Raspian 9 and Peppermint OS 7 ( Linux 4.4.0-53-generic #74-Ubuntu) with the same results. i believe iw is broken or some command knowledge is missing.
So what drivers are involved. Please include kernel logs. Regards, Arend
