From: Oliver Neukum <oliver@neukum.org>
To: "Arve Hjønnevåg" <arve@android.com>
Cc: Kyle Moffett <kyle@moffetthome.net>,
Uli Luckas <u.luckas@road.de>,
LKML <linux-kernel@vger.kernel.org>,
Nigel Cunningham <nigel@nigel.suspend2.net>,
Brian Swetland <swetland@google.com>,
pm list <linux-pm@lists.linux-foundation.org>,
Arjan van de Ven <arjan@infradead.org>
Subject: Re: [RFD] Automatic suspend
Date: Wed, 18 Feb 2009 23:44:05 +0100 [thread overview]
Message-ID: <200902182344.12100.oliver@neukum.org> (raw)
In-Reply-To: <d6200be20902181435o1794007bpfbab1f9e41979bad@mail.gmail.com>
Am Wednesday 18 February 2009 23:35:26 schrieb Arve Hjønnevåg:
> >> Allowing user space to suspend input devices while they are still open
> >> is useful. The user-space code that reads from the input devices does
> >> not need to know if the device is suspended or not, and the kernel
> >> cannot auto suspend input devices based on inactivity.
> >
> > Hmm. Why can't it?
>
> Because they stop working. It is OK for us to turn off the touchscreen
> when the screen is off, but when the screen is on the user will touch
> items on the screen and expect them to respond. (We could also turn
> off the touchscreen when the keyguard is on, but we don't currently do
> this.)
This depends on the capabilities of the input device in question. Some
USB keyboards can be autosuspended under these conditions because
they can do remote wakeup.
Regards
Oliver
next prev parent reply other threads:[~2009-02-18 22:44 UTC|newest]
Thread overview: 199+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.44L0.0902162156380.24097-100000@netrider.rowland.org>
2009-02-17 23:21 ` [RFD] Automatic suspend Rafael J. Wysocki
[not found] ` <200902180022.00239.rjw@sisk.pl>
2009-02-18 4:46 ` Arve Hjønnevåg
[not found] ` <d6200be20902172046sf00599ckc6710c6132d6b92f@mail.gmail.com>
2009-02-18 21:17 ` Rafael J. Wysocki
[not found] ` <200902182217.48321.rjw@sisk.pl>
2009-02-18 22:35 ` Arve Hjønnevåg
2009-02-18 22:44 ` Oliver Neukum [this message]
2009-02-18 23:04 ` Rafael J. Wysocki
2009-03-01 22:56 ` Pavel Machek
[not found] ` <20090301225647.GE1961@elf.ucw.cz>
2009-03-02 8:24 ` Oliver Neukum
[not found] ` <200903020924.42451.oliver@neukum.org>
2009-03-02 14:34 ` Pavel Machek
2009-03-02 15:13 ` Arjan van de Ven
[not found] <Pine.LNX.4.44L0.0902270943490.2926-100000@iolanthe.rowland.org>
2009-02-27 20:58 ` Rafael J. Wysocki
[not found] <20090227101632.GG4582@elf.ucw.cz>
2009-02-27 14:46 ` Alan Stern
[not found] <Pine.LNX.4.44L0.0902211135170.7396-100000@netrider.rowland.org>
2009-02-21 21:14 ` Rafael J. Wysocki
[not found] ` <200902212214.59660.rjw@sisk.pl>
2009-02-27 10:16 ` Pavel Machek
[not found] <200902191356.53584.rjw@sisk.pl>
2009-02-19 14:59 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.0902190956570.3012-100000@iolanthe.rowland.org>
2009-02-19 21:15 ` Rafael J. Wysocki
[not found] ` <200902192215.18365.rjw@sisk.pl>
2009-02-19 21:56 ` Brian Swetland
2009-02-19 22:08 ` Alan Stern
2009-02-19 22:08 ` Alan Stern
2009-02-19 22:08 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.0902191659020.7953-100000@iolanthe.rowland.org>
2009-02-19 22:21 ` Rafael J. Wysocki
2009-02-19 22:21 ` Rafael J. Wysocki
2009-02-19 22:21 ` Rafael J. Wysocki
[not found] ` <200902192321.47891.rjw@sisk.pl>
2009-02-19 22:58 ` Oliver Neukum
[not found] ` <200902192358.13068.oliver@neukum.org>
2009-02-20 10:46 ` Rafael J. Wysocki
[not found] ` <200902201146.59944.rjw@sisk.pl>
2009-02-20 22:05 ` Oliver Neukum
[not found] ` <200902202305.09992.oliver@neukum.org>
2009-02-20 22:44 ` Rafael J. Wysocki
2009-02-20 23:11 ` Arve Hjønnevåg
2009-02-20 23:20 ` Oliver Neukum
[not found] ` <200902210020.47665.oliver@neukum.org>
2009-02-21 1:59 ` Arve Hjønnevåg
2009-02-20 2:39 ` Arve Hjønnevåg
[not found] ` <d6200be20902191839w1f74a962h30e859c8b2434f59@mail.gmail.com>
2009-02-20 10:49 ` Rafael J. Wysocki
2009-02-20 11:26 ` Arve Hjønnevåg
[not found] ` <d6200be20902200326g6caa211ai388d4aa9fc270a28@mail.gmail.com>
2009-02-20 15:56 ` Rafael J. Wysocki
[not found] ` <200902201657.01145.rjw@sisk.pl>
2009-02-20 16:07 ` Kyle Moffett
[not found] ` <f73f7ab80902200807j743a37d7hc42283bc7b9dbe6f@mail.gmail.com>
2009-02-20 20:56 ` Rafael J. Wysocki
[not found] ` <200902202156.13480.rjw@sisk.pl>
2009-02-20 21:02 ` Rafael J. Wysocki
2009-02-20 23:03 ` Arve Hjønnevåg
2009-02-20 23:12 ` Oliver Neukum
[not found] ` <200902210012.08088.oliver@neukum.org>
2009-02-20 23:40 ` Rafael J. Wysocki
[not found] ` <200902210040.50344.rjw@sisk.pl>
2009-02-20 23:45 ` Matthew Garrett
[not found] ` <20090220234548.GA9297@srcf.ucam.org>
2009-02-21 9:52 ` Rafael J. Wysocki
2009-02-21 16:52 ` Alan Stern
[not found] ` <d6200be20902201503m59a13cddn59adfc47d0c2ed1e@mail.gmail.com>
2009-02-20 23:57 ` Rafael J. Wysocki
[not found] ` <200902210057.27781.rjw@sisk.pl>
2009-02-21 1:08 ` Arve Hjønnevåg
[not found] ` <d6200be20902201708g45540f60ib024c3365c85aef4@mail.gmail.com>
2009-02-21 9:47 ` Rafael J. Wysocki
[not found] ` <200902211047.26787.rjw@sisk.pl>
2009-02-21 10:32 ` Arve Hjønnevåg
[not found] ` <d6200be20902210232m71700247k8914ca3735563881@mail.gmail.com>
2009-02-21 20:20 ` Rafael J. Wysocki
[not found] ` <200902212120.37684.rjw@sisk.pl>
2009-02-23 23:13 ` Arve Hjønnevåg
[not found] ` <d6200be20902231513h31661a95n63407b5194b56d51@mail.gmail.com>
2009-02-23 23:53 ` Rafael J. Wysocki
[not found] ` <200902240053.11164.rjw@sisk.pl>
2009-02-24 0:02 ` Arve Hjønnevåg
2009-02-27 10:12 ` Pavel Machek
2009-02-27 10:09 ` Pavel Machek
2009-02-27 14:22 ` Rafael J. Wysocki
[not found] ` <200902271522.41915.rjw@sisk.pl>
2009-02-27 14:29 ` Matthew Garrett
2009-02-27 20:40 ` Pavel Machek
[not found] ` <20090227142946.GA13650@srcf.ucam.org>
2009-02-27 20:54 ` Rafael J. Wysocki
[not found] ` <200902272154.03539.rjw@sisk.pl>
2009-02-27 22:09 ` Arve Hjønnevåg
[not found] ` <d6200be20902271409y395822c9ic8f1223f6551631c@mail.gmail.com>
2009-02-27 22:55 ` Rafael J. Wysocki
[not found] ` <20090227204053.GB1387@ucw.cz>
2009-02-27 20:55 ` Rafael J. Wysocki
[not found] ` <200902272155.42010.rjw@sisk.pl>
2009-02-27 22:56 ` Arve Hjønnevåg
[not found] ` <d6200be20902271456w77951afata1d5f378ddbe6b84@mail.gmail.com>
2009-02-27 23:44 ` Pavel Machek
[not found] ` <20090227234458.GB2089@elf.ucw.cz>
2009-02-28 3:04 ` Arve Hjønnevåg
2009-02-28 10:18 ` Rafael J. Wysocki
[not found] ` <200902281118.14595.rjw@sisk.pl>
2009-02-28 21:57 ` Arve Hjønnevåg
[not found] ` <d6200be20902281357r2d3a0075q77055c1781f174d7@mail.gmail.com>
2009-02-28 22:53 ` Rafael J. Wysocki
[not found] ` <200902282353.39763.rjw@sisk.pl>
2009-02-28 23:38 ` Arve Hjønnevåg
2009-03-01 0:06 ` Arve Hjønnevåg
[not found] ` <d6200be20902281606g1c5db332r9970931d7080717f@mail.gmail.com>
2009-03-01 6:28 ` Benjamin Herrenschmidt
2009-03-01 9:11 ` Rafael J. Wysocki
2009-03-01 9:20 ` Rafael J. Wysocki
2009-03-01 23:08 ` Pavel Machek
[not found] ` <200903011020.53130.rjw@sisk.pl>
2009-03-03 1:22 ` Arve Hjønnevåg
[not found] ` <d6200be20903021722y7f085482o66f6dee8c4004acd@mail.gmail.com>
2009-03-03 13:51 ` Pavel Machek
[not found] ` <20090303135143.GA5060@elf.ucw.cz>
2009-03-04 0:06 ` Arve Hjønnevåg
2009-03-04 0:47 ` Pavel Machek
[not found] ` <d6200be20902281538g1dd6aec4q1b42b610d3ea15d1@mail.gmail.com>
2009-03-01 23:17 ` Rafael J. Wysocki
[not found] ` <200903020017.52390.rjw@sisk.pl>
2009-03-02 23:48 ` Arve Hjønnevåg
[not found] ` <d6200be20903021548h11f57283t6d6a9053f3feb3fd@mail.gmail.com>
2009-03-03 22:39 ` Rafael J. Wysocki
[not found] ` <200903032339.02002.rjw@sisk.pl>
2009-03-03 23:38 ` Arve Hjønnevåg
[not found] ` <d6200be20903031538s42c8243dk59c505857cdab7cb@mail.gmail.com>
2009-03-04 0:49 ` Pavel Machek
2009-03-03 13:57 ` Pavel Machek
[not found] ` <20090303135750.GC5060@elf.ucw.cz>
2009-03-03 23:51 ` Arve Hjønnevåg
2009-02-22 14:03 ` Pavel Machek
[not found] ` <20090222140311.GF1387@ucw.cz>
2009-02-23 14:04 ` Oliver Neukum
[not found] ` <200902231504.27879.oliver@neukum.org>
2009-02-27 10:18 ` Pavel Machek
[not found] ` <20090227101818.GH4582@elf.ucw.cz>
2009-02-27 15:22 ` Oliver Neukum
2009-02-27 17:09 ` Chris Friesen
[not found] ` <49A81E59.6010105@nortel.com>
2009-02-27 20:46 ` Pavel Machek
[not found] ` <200902271622.25141.oliver@neukum.org>
2009-03-05 16:54 ` Pavel Machek
[not found] <200902190004.18878.rjw@sisk.pl>
2009-02-18 23:31 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.0902181826500.23001-100000@iolanthe.rowland.org>
2009-02-19 12:56 ` Rafael J. Wysocki
2009-03-05 13:48 ` Pavel Machek
[not found] <Pine.LNX.4.44L0.0902181135400.3186-100000@iolanthe.rowland.org>
2009-02-18 17:10 ` Oliver Neukum
[not found] <Pine.LNX.4.44L0.0902181009410.3186-100000@iolanthe.rowland.org>
2009-02-18 15:55 ` Oliver Neukum
2009-02-18 16:39 ` Alan Stern
[not found] <200902181605.18363.oliver@neukum.org>
2009-02-18 15:10 ` Alan Stern
[not found] <Pine.LNX.4.44L0.0902162144010.24097-100000@netrider.rowland.org>
2009-02-17 23:26 ` Rafael J. Wysocki
[not found] ` <200902180026.55533.rjw@sisk.pl>
2009-02-18 8:53 ` Oliver Neukum
[not found] ` <200902180953.51171.oliver@neukum.org>
2009-02-18 14:51 ` Arjan van de Ven
[not found] ` <20090218065158.5efa8536@infradead.org>
2009-02-18 15:05 ` Oliver Neukum
2009-02-18 15:09 ` Alan Stern
[not found] <20090216185758.1a4d041d@infradead.org>
2009-02-17 3:26 ` Alan Stern
[not found] <200902170008.31054.rjw@sisk.pl>
2009-02-17 3:09 ` Alan Stern
[not found] <200902170002.37973.rjw@sisk.pl>
2009-02-17 2:56 ` Alan Stern
[not found] <200902162312.50556.rjw@sisk.pl>
2009-02-16 22:40 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.0902161736210.21117-100000@netrider.rowland.org>
2009-02-16 22:56 ` Arjan van de Ven
2009-02-16 23:02 ` Rafael J. Wysocki
[not found] ` <20090216145655.727cd39c@infradead.org>
2009-02-16 23:28 ` Rafael J. Wysocki
2009-02-17 2:43 ` Alan Stern
2009-02-17 2:57 ` Arjan van de Ven
2009-02-15 23:10 Rafael J. Wysocki
2009-02-16 0:44 ` Arjan van de Ven
[not found] ` <20090215164456.34aef7e8@infradead.org>
2009-02-16 2:12 ` Benjamin Herrenschmidt
[not found] ` <1234750360.26036.115.camel@pasglop>
2009-02-16 2:20 ` Arjan van de Ven
[not found] ` <20090215182012.3bc6b292@infradead.org>
2009-02-16 3:23 ` Benjamin Herrenschmidt
[not found] ` <1234754621.26036.120.camel@pasglop>
2009-02-16 3:30 ` Arjan van de Ven
2009-02-16 23:05 ` Pavel Machek
2009-02-16 7:06 ` Oliver Neukum
[not found] ` <200902160806.17901.oliver@neukum.org>
2009-02-16 15:40 ` Arjan van de Ven
[not found] ` <20090216074048.6d70f17c@infradead.org>
2009-02-16 16:48 ` Oliver Neukum
[not found] ` <200902161748.09208.oliver@neukum.org>
2009-02-16 17:31 ` Arjan van de Ven
[not found] ` <20090216093108.078aac35@infradead.org>
2009-02-16 20:08 ` Kyle Moffett
[not found] ` <f73f7ab80902161208h12837d4ex1d28d55d031d5d71@mail.gmail.com>
2009-02-16 20:28 ` Arjan van de Ven
2009-02-16 20:39 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.0902161537080.19732-100000@netrider.rowland.org>
2009-02-16 20:45 ` Arjan van de Ven
[not found] ` <20090216124520.315320dc@infradead.org>
2009-02-16 21:32 ` Woodruff, Richard
[not found] ` <13B9B4C6EF24D648824FF11BE896716203771DCF1E@dlee02.ent.ti.com>
2009-02-16 21:52 ` Arjan van de Ven
[not found] ` <20090216135204.064f553b@infradead.org>
2009-02-16 22:36 ` Woodruff, Richard
[not found] ` <13B9B4C6EF24D648824FF11BE896716203771DD01B@dlee02.ent.ti.com>
2009-02-16 22:59 ` Arjan van de Ven
2009-02-16 23:08 ` Rafael J. Wysocki
[not found] ` <20090216145948.6fea81c3@infradead.org>
2009-02-16 23:19 ` Rafael J. Wysocki
[not found] ` <200902170019.40599.rjw@sisk.pl>
2009-02-16 23:23 ` Matthew Garrett
2009-02-16 23:41 ` Arjan van de Ven
[not found] ` <20090216232329.GA15678@srcf.ucam.org>
2009-02-17 10:12 ` Oliver Neukum
2009-02-17 13:58 ` Mark Brown
2009-02-17 14:20 ` Brian Swetland
2009-02-18 0:45 ` mark gross
2009-02-20 5:35 ` Arve Hjønnevåg
[not found] ` <d6200be20902192135y166eb90bt895c97c7b381c44c@mail.gmail.com>
2009-02-20 15:27 ` Arjan van de Ven
2009-02-20 18:22 ` Pavel Machek
[not found] ` <20090220182213.GA1681@ucw.cz>
2009-02-20 18:26 ` Matthew Garrett
[not found] ` <20090220182609.GA3289@srcf.ucam.org>
2009-02-20 20:49 ` Rafael J. Wysocki
[not found] ` <200902202149.25990.rjw@sisk.pl>
2009-02-20 22:43 ` Arve Hjønnevåg
[not found] ` <20090217142001.GB12378@bulgaria.corp.google.com>
2009-02-17 14:24 ` Matthew Garrett
2009-02-17 14:46 ` Arjan van de Ven
[not found] ` <20090217142453.GA25530@srcf.ucam.org>
2009-02-17 14:56 ` Oliver Neukum
[not found] ` <20090217064630.688bf639@infradead.org>
2009-02-17 14:51 ` Matthew Garrett
[not found] ` <20090217145141.GA26158@srcf.ucam.org>
2009-02-17 14:56 ` Arjan van de Ven
2009-02-17 14:58 ` Igor Stoppa
[not found] ` <20090217065622.3e0a9956@infradead.org>
2009-02-17 15:32 ` Woodruff, Richard
[not found] ` <13B9B4C6EF24D648824FF11BE896716203771DD342@dlee02.ent.ti.com>
2009-02-18 0:04 ` Arjan van de Ven
[not found] ` <20090217160421.12bc851f@infradead.org>
2009-02-18 0:18 ` Woodruff, Richard
2009-02-18 0:52 ` mark gross
2009-02-18 5:11 ` Arve Hjønnevåg
[not found] ` <13B9B4C6EF24D648824FF11BE896716203772614AD@dlee02.ent.ti.com>
2009-02-18 5:35 ` Arjan van de Ven
[not found] ` <d6200be20902172111y16debabaq85b8f58520f4079a@mail.gmail.com>
2009-02-18 5:55 ` Arjan van de Ven
2009-02-18 15:15 ` Matthew Garrett
[not found] ` <20090218151529.GB15195@srcf.ucam.org>
2009-02-18 15:20 ` Woodruff, Richard
2009-02-17 15:28 ` Brian Swetland
[not found] ` <20090217152811.GA12686@bulgaria.corp.google.com>
2009-02-18 0:55 ` mark gross
2009-02-18 2:40 ` Benjamin Herrenschmidt
2009-02-18 17:48 ` Jesse Barnes
[not found] ` <200902180948.06039.jbarnes@virtuousgeek.org>
2009-02-18 17:52 ` Matthew Garrett
[not found] ` <20090218175244.GA19235@srcf.ucam.org>
2009-02-18 18:01 ` Jesse Barnes
2009-02-18 22:05 ` Benjamin Herrenschmidt
2009-03-01 22:51 ` Pavel Machek
2009-02-27 10:00 ` Pavel Machek
2009-02-16 23:20 ` Oliver Neukum
[not found] ` <200902170020.15509.oliver@neukum.org>
2009-02-20 18:05 ` Pavel Machek
2009-02-16 6:23 ` Roland Dreier
2009-02-16 7:02 ` Oliver Neukum
2009-02-16 21:48 ` Rafael J. Wysocki
[not found] ` <200902162248.34287.rjw@sisk.pl>
2009-02-16 21:52 ` Peter Zijlstra
2009-02-16 21:53 ` Arjan van de Ven
[not found] ` <20090216135339.53b4a911@infradead.org>
2009-02-16 22:12 ` Rafael J. Wysocki
2009-02-16 22:51 ` Pavel Machek
[not found] ` <20090216225116.GG1370@ucw.cz>
2009-02-16 22:55 ` Arjan van de Ven
2009-02-16 23:00 ` Rafael J. Wysocki
[not found] ` <200902170000.43387.rjw@sisk.pl>
2009-02-16 23:18 ` Pavel Machek
2009-02-16 23:29 ` Oliver Neukum
[not found] ` <adad4di7vef.fsf@cisco.com>
2009-02-16 15:38 ` Arjan van de Ven
2009-02-16 22:47 ` Pavel Machek
2009-02-16 22:58 ` Pavel Machek
[not found] ` <20090216225831.GH1370@ucw.cz>
2009-02-16 23:13 ` Matthew Garrett
[not found] ` <20090216231324.GA15435@srcf.ucam.org>
2009-02-16 23:22 ` Pavel Machek
[not found] ` <20090216232259.GK1370@ucw.cz>
2009-02-16 23:26 ` Matthew Garrett
2009-02-17 14:14 ` Brian Swetland
2009-02-17 14:19 ` Matthew Garrett
2009-02-17 21:57 ` mark gross
[not found] ` <20090217215717.GA25605@linux.intel.com>
2009-02-17 22:04 ` Matthew Garrett
[not found] ` <20090217220439.GA1573@srcf.ucam.org>
2009-02-17 22:19 ` Jesse Barnes
[not found] ` <200902171419.14823.jbarnes@virtuousgeek.org>
2009-02-17 23:28 ` Woodruff, Richard
2009-02-18 0:34 ` mark gross
2009-02-18 17:30 ` Chris Ball
2009-02-16 23:26 ` Rafael J. Wysocki
[not found] ` <200902170026.06966.rjw@sisk.pl>
2009-02-22 13:46 ` Pavel Machek
2009-02-18 0:27 ` mark gross
[not found] ` <20090218002704.GB25605@linux.intel.com>
2009-02-18 21:11 ` Rafael J. Wysocki
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