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I've never dug in to it before, but some googling just suggested

  /sys/kernel/debug/ieee80211/phy*/
e.g.

  # cat /sys/kernel/debug/ieee80211/phy*/netdev:*/stations/*/rc_stats

  rate      throughput  ewma prob  this prob  this succ/attempt   success    attempts
       1         0.6       68.0      100.0             0(  0)         9          12
  ...


Looks interesting, but which devices and drivers does it apply to? I have no expectation that this would work over every common wifi interface in current laptops (to say nothing of the typical home gateway with their embedded linux distribution and custom proprietary drivers).


Any driver which supports debugfs. Proprietary drivers of course will always be problematic.

Manufacturers could always agree on some kind of debugging protocol... I'm sure we'd up with only one "standard" ;-)




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