From: Johannes Berg <johannes@sipsolutions.net>
To: Rami Rosen <ramirose@gmail.com>
Cc: linux-wireless@vger.kernel.org
Subject: Re: Linux Kernel Wireless stack presentation
Date: Tue, 25 Aug 2009 12:37:23 +0200 [thread overview]
Message-ID: <1251196643.10667.4.camel@johannes.local> (raw)
In-Reply-To: <eb3ff54b0908250329s3e1a4715u27c82512fff520d5@mail.gmail.com>
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Hi,
> > iwconfig wlan0 power timeout 0 == PS-poll,
>
> I am not sure I fully understand what you mean here by
> "iwconfig wlan0 power timeout 0 == PS-poll". As far as I understand,
> "iwconfig wlan0 power timeout 0" invokes ieee80211_change_ps(); this method
> notifies the driver about disabling PS (by
> ieee80211_hw_config(...IEEE80211_CONF_CHANGE_PS))
> and sets the flags to have ~IEEE80211_CONF_PS; It also cancells the
> dynamic_ps_enable_work work_queue thread. But what PS-POLL has to do with it ?
> I am not sure I understand how PSPOLL is relevant here.
No,
iwconfig wlan0 power off
goes into the disable PS case.
iwconfig wlan0 power timeout 0
sets the timeout to zero and power management on. And when the timeout
is 0 we use ps-poll.
johannes
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prev parent reply other threads:[~2009-08-25 10:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-20 7:02 Linux Kernel Wireless stack presentation Rami Rosen
2009-08-20 7:12 ` Luis R. Rodriguez
2009-08-20 7:22 ` Rami Rosen
2009-08-20 7:31 ` Luis R. Rodriguez
2009-08-20 9:22 ` Johannes Berg
2009-08-20 10:14 ` Rami Rosen
2009-08-25 10:29 ` Rami Rosen
2009-08-25 10:37 ` Johannes Berg [this message]
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