Re: [PATCH 1/1] mac80211: send action frame when toggling SM PS mode

["Tomas Winkler" <tomasw@gmail.com>]

On Sun, Sep 28, 2008 at 7:19 PM, Johannes Berg
<johannes@sipsolutions.net> wrote:
> On Sun, 2008-09-28 at 19:14 +0300, Tomas Winkler wrote:
>> From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
>>
>> This patch makes mac80211 able to send action frames when toggling
>> (SM PS) Spacial Multiplexing Power Save mode.
>>
>> Example:
>> 1.
>> Low lever driver may close some of RX chains in power save mode
>> and needs to announce to AP that a RTS frame is need in order to wake all
>> RX chains, on other hand SM PS can be disabled on CAM mode or if HW is able
>> to wake all chains without RTS frame.
>>
>> 2.
>> iwlwifi can call this function when it detects that only
>> one antenna can effectively receive then MS PS mode is set to STATIC and
>> AP is asked not to send MIMO rates packets.
>
> Why is the driver managing the PS mode to start with?

What PS mode, SM PS mode or traditional PS mode? Please be more
verbose so I don't have to guess what you mean.
Thanks
Tomas