Hardware supporting the survey API?

I'm searching for lede compatible hardware filling the survey_info structure. This structure ( https://github.com/torvalds/linux/blob/master/include/net/cfg80211.h#L598 ) may or may not be filled with data regarding channel use (noise, busy_time, rx_time, tx_time), and I'm having trouble finding hardware supporting it.

If you got some hardware you want to test, put your wireless interface in monitoring mode and run something like "sudo iw dev survey dump" or "ethtool -S interface" and look for values that seem coherent (i.e. not "noise: 18446744073709551615", for example).


iw dev XXXX survey dump works as expected on an Archer C7 v2 under both

"LEDE Reboot 17.01-SNAPSHOT r3862-60f8d38"
"OpenWrt SNAPSHOT r6436-d57ca53"