Re: Thoughts about mac80211 client PS implementation

[Felix Fietkau <nbd@openwrt.org>]

Luis R. Rodriguez wrote:
> On Wed, Nov 5, 2008 at 12:33 PM, Johannes Berg
> <johannes@sipsolutions.net> wrote:
>> On Wed, 2008-11-05 at 22:27 +0200, Kalle Valo wrote:
> 
> BTW who defines "Dynamic Power Save"? Is there a standard approach or
> more an implementation approach to the concept of doing PS while
> active?
> 
>>> PS should be disabled while associated and running software scan, and
>>> naturally re-enabled after the scan has finished. I assume hardware
>>> scanning implementations are clever enough to disable PS when scanning
>>> and we don't have to worry about that case.
> 
> BTW we need to check if in ath5k/ath9k if the beacon miss interrupt
> will actually be triggered *if* the beacon filter is *off*. Not sure
> about this yet. Also I'm not sure if triggering scanning will enable
> beaconing filter in our hardware if its off and then disable it after
> scanning too.
The beacon miss interrupt is independent of the beacon filter. In fact
that's the whole point of the interrupt itself. I know that this works
in hardware, we only need to check the software side of it ;)

- Felix