From: Oliver Neukum <oliver@neukum.org>
To: linux-usb-devel@lists.sourceforge.net
Cc: Matthew Garrett <mjg59@srcf.ucam.org>,
David Brownell <david-b@pacbell.net>, Greg KH <gregkh@suse.de>,
Alan Stern <stern@rowland.harvard.edu>,
linux-kernel@vger.kernel.org
Subject: Re: [linux-usb-devel] [PATCH] USB: Only enable autosuspend by default on certain device classes
Date: Fri, 3 Aug 2007 13:44:02 +0200 [thread overview]
Message-ID: <200708031344.03282.oliver@neukum.org> (raw)
In-Reply-To: <20070803112824.GA16802@srcf.ucam.org>
Am Freitag 03 August 2007 schrieb Matthew Garrett:
> On Thu, Aug 02, 2007 at 11:01:08PM -0700, David Brownell wrote:
>
> > Seems to me it ought to be practical to organize a database that can
> > be consulted by an outcall from udev, disabling autosuspend on devices
> > which are known to be broken. The "modules.usbmap" syntax is an obvious
> > place to start (painful though it is), and I'm sure there are folk who
> > would prefer web-accessible/updatable databases.
>
> It's certainly possible to do that, but it's also possible to have a
> userspace solution that whitelists devices. The question is whether the
> default kernel behaviour should be "Save power, but potentially break
> some of my devices" or "Don't break my devices, but use some more
> powre".
If both options have drawbacks, IMHO we follow the standard, which
says that devices must support suspension.
Regards
Oliver
next prev parent reply other threads:[~2007-08-03 11:41 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-02 23:56 [PATCH] USB: Only enable autosuspend by default on certain device classes Matthew Garrett
2007-08-03 1:15 ` Greg KH
2007-08-03 1:47 ` Matthew Garrett
2007-08-03 2:46 ` [linux-usb-devel] " Alan Stern
2007-08-03 6:01 ` David Brownell
2007-08-03 11:28 ` Matthew Garrett
2007-08-03 11:44 ` Oliver Neukum [this message]
2007-08-03 12:04 ` Matthew Garrett
2007-08-03 12:26 ` Rogan Dawes
2007-08-03 12:32 ` Matthew Garrett
2007-08-03 14:01 ` David Brownell
2007-08-03 14:09 ` Matthew Garrett
2007-08-03 14:28 ` Alan Stern
2007-08-03 14:33 ` Matthew Garrett
2007-08-03 14:41 ` Alan Stern
2007-08-03 15:10 ` Matthew Garrett
2007-08-03 14:43 ` Jiri Kosina
2007-08-03 14:53 ` [linux-usb-devel] " Dave Jones
2007-08-03 14:58 ` Jiri Kosina
2007-08-03 15:24 ` David Brownell
2007-08-03 15:29 ` Jiri Kosina
2007-08-03 17:47 ` Alan Stern
2007-08-03 15:25 ` Adam Kropelin
2007-08-03 15:31 ` Jiri Kosina
2007-08-03 15:48 ` Dave Jones
2007-08-03 16:49 ` David Brownell
2007-08-03 16:55 ` Adam Kropelin
2007-08-03 15:06 ` Matthew Garrett
2007-08-03 14:37 ` [linux-usb-devel] " David Brownell
2007-08-03 15:03 ` Matthew Garrett
2007-08-03 16:08 ` Oliver Neukum
2007-08-03 17:49 ` Alan Stern
2007-08-03 20:03 ` Dave Jones
2007-08-03 16:29 ` David Brownell
2007-08-03 16:50 ` Matthew Garrett
2007-08-03 17:49 ` Greg KH
2007-08-03 17:44 ` Greg KH
2007-08-03 17:48 ` Matthew Garrett
2007-08-03 19:29 ` Chuck Ebbert
2007-08-03 19:56 ` Pete Zaitcev
2007-08-07 9:14 ` Amit Kucheria
2007-08-03 20:12 ` [linux-usb-devel] " Dave Jones
2007-08-03 21:17 ` Alan Stern
2007-08-03 21:31 ` Dave Jones
2007-08-03 21:33 ` Matthew Garrett
2007-08-03 12:34 ` Felipe Balbi
2007-08-03 6:06 ` David Brownell
2007-08-03 14:22 ` Dave Jones
2007-08-03 14:52 ` David Brownell
2007-08-03 7:57 ` Oliver Neukum
2007-08-03 14:24 ` Dave Jones
2007-08-03 14:32 ` Oliver Neukum
2007-08-03 14:36 ` [linux-usb-devel] [PATCH] USB: Only enable autosuspend by?default " Dave Jones
2007-08-03 19:34 ` [linux-usb-devel] [PATCH] USB: Only enable autosuspend by default " Pete Zaitcev
2007-08-03 19:45 ` Dave Jones
2007-08-03 20:04 ` Pete Zaitcev
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