[OpenWrt-Devel] Status of ACS survey with rt2x00 driver using hostapd

[Yousong Zhou]

Hi, Helmut

On 22 August 2014 04:56, Helmut Schaa <helmut.schaa at googlemail.com> wrote:
> Your observation is correct, rt2x00 only returns survey data for the current
> channel. I also thought about doing the same approach as ath9k but duplicating
> the code seems not reasonable. It might make more sense to move the
> survey data buffering to mac80211 and use it from ath9k and rt2x00.

I may note that the situation for ath9k driver is not much better.
While it did seem as if statistics of all channels were returned, but
the actual implementation indicates that only statistics of the
current channel were updated, in an incremental way, which means that
the returned statistics of other channels were stale and that the data
may not well represent the most recent state of channel since all
history information were mixed together.

Regards.

               yousong
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