linux-kernel - Re: linux-next: Tree for Apr 24 [ PM: Device 1-1.2 failed to resume async: error -32 ]

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Date:	Thu, 25 Apr 2013 17:52:38 +0200
From:	Sedat Dilek <sedat.dilek@...il.com>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Linux PM List <linux-pm@...ts.linux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-usb@...r.kernel.org
Subject: Re: linux-next: Tree for Apr 24 [ PM: Device 1-1.2 failed to resume
 async: error -32 ]

On Thu, Apr 25, 2013 at 5:44 PM, Alan Stern <stern@...land.harvard.edu> wrote:
> On Wed, 24 Apr 2013, Sedat Dilek wrote:
>
>> With CONFIG_USB_DEBUG=y I do not see a PM/async line.
>>
>> Might you have a look at the logs?
>
> They look quite normal.  Except for one thing: The built-in hubs appear
> to have gotten reset during the suspend/resume, for no apparent reason.
> That's probably the reason why the Logitech mouse needed a reset.
>
> I don't know why the mouse reset worked this time but not before,
> unless it's a subtle timing issue (the extra debugging output causes
> the resume to go a little more slowly).
>

Thanks for your patience, help, hints and explanations.

You want me to send a patch against usb-next to clarify a bit on the
kernel-config options to be enabled as prereqs in case of
usbmon-tracing. If you think it's worth or not let me know.

- Sedat -

> Alan Stern
>
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