From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
To: Matthew Garrett <mjg@redhat.com>
Cc: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
rpurdie@rpsys.net, lenb@kernel.org, rui.zhang@intel.com,
corentincj@iksaif.net
Subject: Re: [PATCH 1/3] backlight: Allow drivers to update the core, and generate events on changes
Date: Tue, 14 Jul 2009 07:30:07 -0300 [thread overview]
Message-ID: <20090714103006.GA19866@khazad-dum.debian.net> (raw)
In-Reply-To: <1247517685-7719-1-git-send-email-mjg@redhat.com>
On Mon, 13 Jul 2009, Matthew Garrett wrote:
> Certain hardware will send us events when the backlight brightness
> changes. Add a function to update the value in the core, and
> additionally send a uevent so that userspace can pop up appropriate
> UI. The uevents are flagged depending on whether the update originated
> in the kernel or from userspace, making it easier to only display UI
> at the appropriate time.
Any reasons to not do it using poll() support (since sysfs has it)? Or at
least, do both poll and uevents?
Other than that, I like the idea a lot. thinkpad-acpi will use this event
support.
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
next prev parent reply other threads:[~2009-07-14 10:30 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-13 20:41 Matthew Garrett
2009-07-13 20:41 ` [PATCH 2/3] ACPI: Update the backlight state when we change brightness Matthew Garrett
2009-07-13 20:41 ` [PATCH 3/3] eeepc-laptop: " Matthew Garrett
2009-07-14 0:58 ` [PATCH 1/3] backlight: Allow drivers to update the core, and generate events on changes ykzhao
2009-07-14 1:53 ` Matthew Garrett
2009-07-14 15:48 ` Matthew Garrett
2009-07-14 10:30 ` Henrique de Moraes Holschuh [this message]
2009-07-14 13:21 ` Matthew Garrett
2009-07-14 15:54 ` Henrique de Moraes Holschuh
2009-07-14 12:29 ` Richard Purdie
2009-07-14 12:55 ` Matthew Garrett
2009-07-15 7:55 ` Zhang Rui
2009-07-15 8:22 ` Richard Purdie
2009-07-15 8:38 ` Zhang Rui
2009-07-15 9:11 ` Richard Purdie
2009-07-15 13:58 ` Matthew Garrett
2009-07-16 2:39 ` Zhang Rui
2009-07-16 2:40 ` Matthew Garrett
2009-07-29 15:05 ` Pavel Machek
2009-07-29 15:20 ` Matthew Garrett
2009-07-29 15:31 ` Richard Purdie
2009-07-14 16:06 Matthew Garrett
2009-07-16 21:33 ` Michal Schmidt
2009-07-18 11:48 ` Pavel Machek
2009-09-19 23:24 ` Henrique de Moraes Holschuh
2009-09-20 4:15 ` Matthew Garrett
2009-09-20 11:16 ` Henrique de Moraes Holschuh
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