linux-kernel - Re: 2.6.23-rc1: USB hard disk broken

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Message-ID: <Pine.LNX.4.44L0.0708101639310.4845-100000@iolanthe.rowland.org>
Date:	Fri, 10 Aug 2007 16:43:23 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Dan Zwell <dzwell@...il.com>
cc:	Oliver Neukum <oliver@...kum.org>,
	Tino Keitel <tino.keitel@....de>,
	David Brownell <david-b@...bell.net>,
	<linux-kernel@...r.kernel.org>
Subject: Re: 2.6.23-rc1: USB hard disk broken

On Fri, 10 Aug 2007, Dan Zwell wrote:

> Alan,
> 
> Yes, that patch worked, and dmesg now shows the device auto-suspending 
> and resuming every few seconds. Thanks a lot. I hope you do merge this 
> patch or a workaround like it.

I will submit it; we'll see whether anyone objects.

By the way, you can change the constant autosuspend and autoresume 
behavior easily enough.  All you have to do is:

	echo N >/sys/bus/usb/devices/.../power/autosuspend

where "..." is the path for the disk's USB device and N is the number
of seconds the disk should be idle before it gets autosuspended.  If
you use -1 for N then the disk will never autosuspend.

Alan Stern

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