From: Pekka Enberg <penberg@cs.helsinki.fi>
To: alan-jenkins@tuffmail.co.uk
Cc: Corentin Chary <corentin.chary@gmail.com>,
acpi4asus-user@lists.sourceforge.net, len.brown@intel.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] eeepc-laptop: enable camera by default
Date: Fri, 05 Jun 2009 17:50:12 +0300 [thread overview]
Message-ID: <1244213412.23533.41.camel@penberg-laptop> (raw)
In-Reply-To: <9b2b86520906050738kea062c9n1b2c0e767d6eb0aa@mail.gmail.com>
Hi Alan,
On Fri, 2009-06-05 at 15:38 +0100, Alan Jenkins wrote:
> Ok. I didn't bother shutting down my system, but I get a similar
> difference; 16 wakeups/s disabled v.s. 25 enabled. Anecdotally,
> disabling the camera does help battery life, and presumably Asus had
> good reason to implement it! (The shipped OS "fixes" the usability
> problem by patching the camera apps).
>
> BUT I found that autosuspend didn't seem to break anything, and
> enabling it also got me down to 16 wakeups/s. I think this is ideal
> because autosuspend is automatic so I can save power without manual
> toggling.
>
> Here's some magic to enable autosuspend:
>
> # echo -n auto > /sys/bus/usb/drivers/uvcvideo/*:*/../power/level
>
> Ideally this wants to be enabled automatically using a udev rule.
Can the kernel do this by default for this specific driver on eeepc?
Pekka
next prev parent reply other threads:[~2009-06-05 14:50 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-05 8:59 [PATCH] eeepc-laptop: enable camera by default Pekka J Enberg
2009-06-05 11:46 ` Corentin Chary
2009-06-05 12:44 ` Pekka Enberg
2009-06-05 13:02 ` Corentin Chary
2009-06-05 13:39 ` Alan Jenkins
2009-06-05 13:51 ` Pekka Enberg
2009-06-05 13:54 ` Pekka Enberg
2009-06-05 13:58 ` Corentin Chary
2009-06-05 14:38 ` Alan Jenkins
2009-06-05 14:50 ` Pekka Enberg [this message]
2009-06-05 14:55 ` Alan Jenkins
2009-06-05 15:08 ` Alan Jenkins
2009-06-05 15:14 ` Pekka Enberg
2009-06-07 14:54 ` Darren Salt
2009-06-07 15:41 ` Alan Jenkins
2009-06-07 23:28 ` Matthew Garrett
2009-06-08 3:03 ` Alan Stern
2009-06-08 3:07 ` Matthew Garrett
2009-06-08 3:10 ` Alan Stern
2009-06-08 15:00 ` Matthew Garrett
2009-06-08 20:44 ` Alan Stern
2009-06-05 15:13 ` Alan Stern
2009-06-05 15:22 ` Pekka Enberg
2009-06-05 21:01 ` Woody Suwalski
2009-06-06 7:12 ` Corentin Chary
2009-06-06 8:04 ` Alan Jenkins
2009-06-05 20:08 ` Andrew Morton
2009-06-06 7:25 ` Corentin Chary
2009-06-06 7:31 ` Andrew Morton
2009-06-06 7:52 ` Corentin Chary
2009-06-06 9:17 ` Pekka Enberg
2009-06-06 10:17 ` Corentin Chary
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