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From: Pavel Machek <pavel@ucw.cz>
To: Uli Luckas <u.luckas@road.de>
Cc: swetland@google.com, linux-pm@lists.linux-foundation.org,
	Nigel Cunningham <ncunningham@crca.org.au>
Subject: Re: [RFC][PATCH 00/11] Android PM extensions
Date: Mon, 2 Feb 2009 12:46:44 +0100	[thread overview]
Message-ID: <20090202114644.GC4631@elf.ucw.cz> (raw)
In-Reply-To: <200901301334.03007.u.luckas@road.de>

On Fri 2009-01-30 13:34:02, Uli Luckas wrote:
> On Friday, 30. January 2009, Pavel Machek wrote:
> > > >> - The user-space input-event thread returns from read. It determines
> > > >> that the key should not wake up the system, releases the
> > > >> process-input-events wakelock and calls select or poll.
> > > >
> > > > This makes no sense.  If the system wasn't asleep to begin with, how
> > > > could the key wake it up?  And if the system _was_ asleep to begin
> > > > with, how could all of this happen without waking the system up?
> > >
> > > What I mean here is that the screen turns on and the system does not
> > > immediately go back to sleep. The user-space framework has its own
> > > idea of whether the system is awake or not. I can change this to
> > > "fully wake up" or "turn on the screen".
> >
> > "turn on the screen", please. (But I still don't quite get it; screen
> > should be at full control of userspace, so why is kernel interaction
> > needed?) Pavel
> >
> Turning on the screen is only on thing userspace can do. What exactly happens 
> is beyon the scope of the kernel interface.
> The right term is probably something like "break out of auto-suspend" or "wake 
> from auto suspend".

I guess I'm missing big parts of the picture here. It would be nice to
document how it all works together... somewhere.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

  reply	other threads:[~2009-02-02 11:46 UTC|newest]

Thread overview: 89+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-14  1:27 [RFC][PATCH 00/11] Android PM extensions Arve Hjønnevåg
2009-01-14  1:27 ` [PATCH 01/11] PM: Add wake lock api Arve Hjønnevåg
2009-01-14  1:27   ` [PATCH 02/11] PM: Add early suspend api Arve Hjønnevåg
2009-01-14  1:27     ` [PATCH 03/11] PM: Implement wakelock api Arve Hjønnevåg
2009-01-14  1:27       ` [PATCH 04/11] PM: Implement early suspend api Arve Hjønnevåg
2009-01-14  1:27         ` [PATCH 05/11] PM: Enable early suspend through /sys/power/state Arve Hjønnevåg
2009-01-14  1:27           ` [PATCH 06/11] PM: Add user-space wake lock api Arve Hjønnevåg
2009-01-14  1:27             ` [PATCH 07/11] PM: wakelock: Abort task freezing if a wake lock is held Arve Hjønnevåg
2009-01-14  1:27               ` [PATCH 08/11] PM: earlysuspend: Add console switch when user requested sleep state changes Arve Hjønnevåg
2009-01-14  1:27                 ` [PATCH 09/11] PM: earlysuspend: Removing dependence on console Arve Hjønnevåg
2009-01-14  1:27                   ` [PATCH 10/11] Input: Hold wake lock while event queue is not empty Arve Hjønnevåg
2009-01-14  1:27                     ` [PATCH 11/11] ledtrig-sleep: Add led trigger for sleep debugging Arve Hjønnevåg
2009-01-30 12:43             ` [PATCH 06/11] PM: Add user-space wake lock api Uli Luckas
2009-01-31  0:17               ` Arve Hjønnevåg
2009-01-31  7:24               ` Brian Swetland
2009-01-28 19:34           ` [PATCH 05/11] PM: Enable early suspend through /sys/power/state Pavel Machek
2009-01-31  3:13             ` Arve Hjønnevåg
2009-01-31 15:49               ` Alan Stern
2009-02-02 11:44                 ` Pavel Machek
2009-02-02 11:45               ` Pavel Machek
2009-02-02 22:36                 ` Arve Hjønnevåg
2009-01-14  9:48         ` [PATCH 04/11] PM: Implement early suspend api Nigel Cunningham
2009-01-14 23:57           ` Arve Hjønnevåg
2009-01-14  9:30       ` [PATCH 03/11] PM: Implement wakelock api Nigel Cunningham
2009-01-14 23:28         ` Arve Hjønnevåg
2009-01-14  9:17     ` [PATCH 02/11] PM: Add early suspend api Nigel Cunningham
2009-01-14 23:18       ` Arve Hjønnevåg
2009-01-14  9:09   ` [PATCH 01/11] PM: Add wake lock api Nigel Cunningham
2009-01-14 23:07     ` Arve Hjønnevåg
2009-01-14  9:01 ` [RFC][PATCH 00/11] Android PM extensions Nigel Cunningham
2009-01-15  0:10   ` Arve Hjønnevåg
2009-01-15  4:42   ` Arve Hjønnevåg
2009-01-15 15:08     ` Alan Stern
2009-01-15 20:34       ` Arve Hjønnevåg
2009-01-29 13:04       ` Pavel Machek
2009-01-30  1:16         ` Arve Hjønnevåg
2009-01-30  3:27           ` Alan Stern
2009-01-30  4:40             ` Arve Hjønnevåg
2009-01-30  6:04               ` Arve Hjønnevåg
2009-02-02 11:49                 ` Pavel Machek
2009-01-30  9:11               ` Pavel Machek
2009-01-30 12:34                 ` Uli Luckas
2009-02-02 11:46                   ` Pavel Machek [this message]
2009-01-30 15:13               ` Alan Stern
2009-01-31  0:02                 ` Arve Hjønnevåg
2009-01-31 16:19                   ` Alan Stern
2009-01-31 23:28                     ` Arve Hjønnevåg
2009-02-02 10:42                     ` Uli Luckas
2009-02-02 15:05                       ` Alan Stern
2009-02-02 16:15                         ` Uli Luckas
2009-02-02 16:35                           ` Alan Stern
2009-02-03 20:15                           ` Pavel Machek
2009-01-31  7:47                 ` Brian Swetland
2009-01-31 15:41                   ` Alan Stern
2009-01-31 18:39                     ` Rafael J. Wysocki
2009-01-31 18:54                       ` Igor Stoppa
2009-02-01  1:04                       ` Arve Hjønnevåg
2009-02-02 11:55                       ` Pavel Machek
2009-01-31 22:41                     ` Arve Hjønnevåg
2009-01-31 23:20                       ` Rafael J. Wysocki
2009-01-31 23:32                         ` Arve Hjønnevåg
2009-02-01  0:18                           ` Rafael J. Wysocki
2009-02-01  1:17                             ` Arve Hjønnevåg
2009-02-01  1:32                               ` Rafael J. Wysocki
2009-02-01  2:14                                 ` Arve Hjønnevåg
2009-02-01 12:30                                   ` Rafael J. Wysocki
2009-02-01 14:03                                     ` Woodruff, Richard
2009-02-01 17:43                                     ` Alan Stern
2009-02-01 19:27                                       ` Woodruff, Richard
2009-02-02 11:00                                       ` Uli Luckas
2009-02-02 15:09                                         ` Alan Stern
2009-02-02 16:24                                           ` Uli Luckas
2009-02-02 21:47                                           ` Nigel Cunningham
2009-02-02 23:21                                             ` Arve Hjønnevåg
2009-02-02 23:51                                               ` Nigel Cunningham
2009-02-03  0:08                                                 ` Arve Hjønnevåg
2009-02-04 13:25                                               ` Pavel Machek
2009-02-02 23:10                                           ` Arve Hjønnevåg
2009-02-03  3:27                                             ` Alan Stern
2009-02-03  4:18                                               ` Arve Hjønnevåg
2009-02-03 20:30                                                 ` Alan Stern
2009-02-04 13:29                                                 ` Pavel Machek
2009-02-02 11:56                         ` Pavel Machek
2009-02-02 12:38                           ` Uli Luckas
2009-01-30  9:08           ` Pavel Machek
2009-01-30  9:25             ` Brian Swetland
2009-01-28 19:31 ` Pavel Machek
  -- strict thread matches above, loose matches on Subject: below --
2009-02-05  2:50 Arve Hjønnevåg
2009-02-06 23:51 ` Rafael J. Wysocki

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