linux-kernel - Re: [Bug #13624] usb: wrong autosuspend initialization

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Message-ID: <4A6DBD51.6040103@phuk.ath.cx>
Date:	Mon, 27 Jul 2009 16:44:33 +0200
From:	list@...k.ath.cx
To:	Alan Stern <stern@...land.harvard.edu>
CC:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Oliver Neukum <oliver@...kum.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>
Subject: Re: [Bug #13624] usb: wrong autosuspend initialization

Alan Stern wrote:
> On Sun, 26 Jul 2009, Rafael J. Wysocki wrote:
> 
>> This message has been generated automatically as a part of a report
>> of regressions introduced between 2.6.29 and 2.6.30.
>>
>> The following bug entry is on the current list of known regressions
>> introduced between 2.6.29 and 2.6.30.  Please verify if it still should
>> be listed and let me know (either way).
>>
>>
>> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=13624
>> Subject		: usb: wrong autosuspend initialization
>> Submitter	:  <list@...k.ath.cx>
>> Date		: 2009-06-25 18:18 (32 days old)
> 
> There's some question as to whether this should be considered a kernel 
> bug.  The kernel isn't doing anything wrong; the problem is that 
> various userspace programs enable autosuspend for devices that can't 
> support it properly.
> 
> Alan Stern
> 

I'm currently working on a patch for laptop_mode. The maintainer tells 
me there's work going on in the kernel to blacklist USB devices that 
don't implement autosuspend correctly (like mice turning their light 
off, etc...). Is that true?
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