From: Matthew Garrett <mjg59@srcf.ucam.org>
To: ykzhao <yakui.zhao@intel.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
"rpurdie@rpsys.net" <rpurdie@rpsys.net>,
"lenb@kernel.org" <lenb@kernel.org>,
"Zhang, Rui" <rui.zhang@intel.com>,
"corentincj@iksaif.net" <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 16:48:03 +0100 [thread overview]
Message-ID: <20090714154803.GA26311@srcf.ucam.org> (raw)
In-Reply-To: <20090714015326.GA9044@srcf.ucam.org>
On Tue, Jul 14, 2009 at 02:53:26AM +0100, Matthew Garrett wrote:
> On Tue, Jul 14, 2009 at 08:58:48AM +0800, ykzhao wrote:
>
> > It will be better to send the event to user space only when the
> > brightness is updated successfully.
>
> That guarantees that we have to read back the brightness, which may be
> expensive on some hardware.
Oh, sorry, I see what you mean. I'll update that.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2009-07-14 15:48 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-13 20:41 [PATCH 1/3] backlight: Allow drivers to update the core, and generate events on changes 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 [this message]
2009-07-14 10:30 ` Henrique de Moraes Holschuh
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
-- strict thread matches above, loose matches on Subject: below --
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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