From: Paul Fox <pgf@laptop.org>
To: "linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>
Subject: Re: a question about lid input device
Date: Mon, 05 Jul 2010 16:04:06 -0400 [thread overview]
Message-ID: <2022.1278360246@foxharp.boston.ma.us> (raw)
In-Reply-To: <20100705194945.GA11096@khazad-dum.debian.net> (sfid-20100705_154958_487997_A01EF40D)
henrique de moraes holschuh wrote:
> On Mon, 05 Jul 2010, Zhang Rui wrote:
> > > I think if you can listen to uevents you can just as easily open /dev/
> > > input/eventX and listen to proper input events.
> > >
> > the question is users may want to get the lid switch STATUS,
> > asynchronously.
>
> More often than not, you need to know the current state when dealing
> with EV_SW, to be able to do anything sensbile with it in GUIs, etc.
indeed, this is true for almost any event-on-change interface -- tablet mode,
AC insertion, etc. the change event alone is never enough.
paul
=---------------------
paul fox, pgf@laptop.org
next prev parent reply other threads:[~2010-07-05 20:21 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-13 6:53 a question about lid input device Zhang Rui
2010-06-14 2:01 ` Henrique de Moraes Holschuh
2010-06-22 1:56 ` Len Brown
2010-07-04 8:35 ` Dmitry Torokhov
2010-07-05 1:09 ` Zhang Rui
2010-07-05 1:28 ` Dmitry Torokhov
2010-07-05 1:47 ` Zhang Rui
2010-07-05 19:49 ` Henrique de Moraes Holschuh
2010-07-05 20:04 ` Paul Fox [this message]
2010-07-05 20:27 ` Dmitry Torokhov
2010-07-07 3:08 ` Zhang Rui
2010-07-07 5:36 ` Dmitry Torokhov
2010-07-07 15:14 ` Paul Fox
2010-07-07 16:25 ` Dmitry Torokhov
2010-07-07 16:51 ` Paul Fox
2010-07-07 17:01 ` Dmitry Torokhov
2010-07-07 17:08 ` Paul Fox
2010-07-07 17:19 ` Dmitry Torokhov
2010-09-29 1:12 ` Len Brown
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