wpa_supplicant and power saving options

Jouni Malinen j
Sun Feb 5 09:51:53 PST 2012

On Sun, Feb 05, 2012 at 07:14:52PM +0200, Adrien Bustany wrote:
> Adjusting the TX power of the chip can be used to save quite some power 
> (of course, if you reduce it too much then things stop working :) ), 
> powersaving is a flag exposed by nl80211, I guess what drivers actually 
> do is implementation specific. Those two are quite relevant on mobile 
> devices, where you want to reduce power usage as much as possible.
> I guess that as long as the netlink messages sent by a "power" daemon 
> are not the same as the one sent by wpa-supplicant, conflicts will be 
> minimal?

I was mainly trying to figure out what your use cases are for exposing
power saving parameters through wpa_supplicant.. Obviously, using power
saving can be quite essential for many devices, but for most cases, I
would like to see reasonable behavior by default and no real need for
actually finetuning parameters. Anyway, settings such parameters is
completely independent of wpa_supplicant, so I don't really see any
particular issues showing up from wpa_supplicant not getting involved in

Jouni Malinen                                            PGP id EFC895FA

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