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From: Len Brown <lenb@kernel.org>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Paul Fox <pgf@foxharp.boston.ma.us>,
	Henrique de Moraes Holschuh <hmh@hmh.eng.br>,
	Zhang Rui <rui.zhang@intel.com>,
	"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>
Subject: Re: a question about lid input device
Date: Tue, 28 Sep 2010 21:12:03 -0400 (EDT)	[thread overview]
Message-ID: <alpine.LFD.2.00.1009282109520.32026@localhost.localdomain> (raw)
In-Reply-To: <20100707162511.GA25178@core.coreip.homeip.net>

> > the lid:  is /proc/acpi/button/lid/LID/state going away?

> Yes, according to feature-removal.txt ACPI procfs interface shoudl have
> been gone back in 2008.

Note that /proc/acpi/button/lid/*/state is not reliable
on a measurable portion of systems.

We suspect that other operating systems do not use it,
and thus when Linux tries to use it, sometimes we get burnt.

thanks,
-Len Brown, Intel Open Source Technology Center

      parent reply	other threads:[~2010-09-29  1:12 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
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 [this message]

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