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From: Hans Petter Selasky <hselasky@c2i.net>
To: freebsd-usb@freebsd.org,
 Mark Duller <mark.duller@oerc.ox.ac.uk>
Date: Wed, 2 Dec 2009 11:41:46 +0100
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Subject: Re: usb/140160: USB ports are no longer "active" after ACPI
	suspend/resume cycle.
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On Wednesday 02 December 2009 11:30:02 Mark Duller wrote:
> The following reply was made to PR usb/140160; it has been noted by GNATS.
>
> From: Mark Duller <mark.duller@oerc.ox.ac.uk>
> To: bug-followup@FreeBSD.org, jamesbrandongooch@gmail.com
> Cc:
> Subject: Re: usb/140160: USB ports are no longer "active" after ACPI
> suspend/resume cycle.
> Date: Wed, 02 Dec 2009 09:50:55 +0000
>
>  I have seen a similar issue on my x61s Thinkpad while following the 8.0x
>  releases. The behaviour has changed throughout the releases.
>
>  On my latest test (on FreeBSD 8.0-PRERELEASE #2: i386), I found this
>  issue only occurs if I suspend the system while no usb modules are
>  loaded. On a resume, if one then loads the usb modules (such as umass
>  ehci uhci), usb does not work.
>
>  My current workaround is to ensure I load the modules I need before the
>  first suspend. A resume in this case does keep the usb ports 'active'.
>
>  I'll report back if i notice any change in 8.0-Release.
>

Looks like we need to test USB suspend and resume a little bit more.

--HPS