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From: Hans Petter Selasky <hselasky@c2i.net>
To: freebsd-current@freebsd.org
Date: Mon, 23 Feb 2009 09:16:01 +0100
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Cc: Brandon Gooch <jamesbrandongooch@gmail.com>, jkim@freebsd.org
Subject: Re: Disabled USB ports after suspend/resume
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Hi,

I think it might be a problem that the explore thread is running at the same 
time we are doing a resume on the hardware.

What happens if you run:

usbconfig -u xxx -a yyy set_config 0

On one of the root HUBs ? Do the devices re-appear ?

And if you replug the device? Does it re-appear?

What you can try is to run the "detach()" instead of "suspend()" 
and "attach()" instead of "resume()" for ehci/ohci/uhci. See 
sys/dev/usb2/controller . Right now we are moving around the files, else I 
could have sent you a patch.

--HPS

On Sunday 22 February 2009, Brandon Gooch wrote:
> I've been using Jung-uk Kim's suspend patches for amd64 since before
> the new USB stack:
>
> http://people.freebsd.org/~jkim/amd64_suspend.diff
>
> Now when I suspend and resume, I lose USB ports.
>
> >From dmesg:
>
> ugen0.2: <STMicroelectronics> at usbus0 (disconnected)
> stray irq0
> usbus2: port reset timeout
> uhub_reattach_port:348: port 2 reset failed, error=USB_ERR_TIMEOUT
> uhub_reattach_port:434: device problem (USB_ERR_TIMEOUT), disabling port 2
>
> I'm at svn rev. 188909.
> _______________________________________________
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