linux-kernel - Re: [GIT PATCH] USB autosuspend fixes for 2.6.23-rc6

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Message-ID: <Pine.LNX.4.44L0.0709141026390.3782-100000@iolanthe.rowland.org>
Date:	Fri, 14 Sep 2007 10:29:22 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Adrian Bunk <bunk@...nel.org>
cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Greg KH <gregkh@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-usb-devel@...ts.sourceforge.net>,
	Oliver Neukum <oneukum@...e.de>
Subject: Re: [GIT PATCH] USB autosuspend fixes for 2.6.23-rc6

On Fri, 14 Sep 2007, Adrian Bunk wrote:

> Let me paraphrase the latter:
> 
> Given a distribution shipping with kernel 2.6.23 released in 2007.
> 
> What is the maximum amount of userspace I might have to upgrade
> if I'll want to use kernel 2.6.43 released in 2011 (sic) with this 
> distribution?

I can't speak for other parts of the kernel or userspace.  Concerning
USB autosuspend, you should not have to upgrade anything.

You might end up getting better power savings if you did upgrade, but 
failing to upgrade wouldn't make your power usage any worse.

Alan Stern

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