From: Dave Jones <davej@redhat.com>
To: Len Brown <lenb@kernel.org>
Cc: linux-acpi@vger.kernel.org
Subject: Re: Ambient Light Sensor?
Date: Tue, 20 Mar 2007 11:13:42 -0400 [thread overview]
Message-ID: <20070320151342.GA8667@redhat.com> (raw)
In-Reply-To: <200703191341.41823.lenb@kernel.org>
On Mon, Mar 19, 2007 at 01:41:41PM -0400, Len Brown wrote:
> Has anybody seen ACPI-based ambient light sensor support on a commercial system?
>
> You'd recognize it by a device with PNPid ACPI0008 exported via the AML device tree.
>
> I've seen it on an Intel Capell Valley CRB, but I was wondering
> if anybody is using it in the "real world" yet.
>
> I've seen just the dmesg from a MacBook Pro on the web
> suggesting that system exports ACPI0008:
> http://www.uwsg.iu.edu/hypermail/linux/kernel/0703.0/1475.html
Right. Under OSX, it uses it to adjust the keyboard backlight.
(It may also do something fancy wrt gamma correction with the
built-in webcam)
Dave
--
http://www.codemonkey.org.uk
next prev parent reply other threads:[~2007-03-20 15:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-19 17:41 Ambient Light Sensor? Len Brown
2007-03-20 15:13 ` Dave Jones [this message]
2007-03-20 15:39 ` Franklin Marmon
2007-03-20 15:50 ` Matthew Garrett
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20070320151342.GA8667@redhat.com \
--to=davej@redhat.com \
--cc=lenb@kernel.org \
--cc=linux-acpi@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.