Re: [RFC PATCH] usb/acpi: Add support usb port power off mechanism for device fixed on the motherboard

Sarah Sharp
2012-05-11T20:15:11Z

On Fri, May 11, 2012 at 07:54:04PM +0000, Lan, Tianyu wrote:
> On 2012/5/12 1:44, Alan Stern wrote:
> > This doesn't matter. Disconnections will be handled by
> > usb_reset_and_verify_device(), when it is called by
> > finish_port_resume().
> This will cause the device to be re-enumerated. Just like
> unplugged and plugged a device. I think this is not what
> we want. Disconnect and create the same device. device
> num is also change.

Tianyu, do you have CONFIG_USB_PERSIST turned on?

Alan, do you know if that will that only help in this case after the
host controller PCI device is in D3hot?

Sarah Sharp