Re: [RFC][PATCH 2/2] PM: Make system-wide PM and runtime PM handlesubsystems consistently

[Alan Stern]

On Wed, 16 Feb 2011, Rafael J. Wysocki wrote:

> Unfortunately, it doesn't work on my Acer Ferrari One.  The problem is that
> hcd_pci_suspend() fails for the EHCI controller, apparently because the root
> hub is not suspended.  Do root hubs need both class suspend and bus type
> suspend to work at the same time?

No, only the bus type suspend method is needed.  Can you provide the
dmesg log using a kernel built with CONFIG_USB_DEBUG?

Alan Stern

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