On Mon, 13 Aug 2012, Lan, Tianyu wrote: > Hi all: > I am trying to implement patch of setting DeviceRemovable according ACPI information. > The DeviceRemovable is set in hcd driver *_hub_descriptor(e.g ehci_hub_descriptor()). But these > functions just have struct usb_hcd or hcd specific struct(e.g struct xhci_hcd) and struct usb_hub_descriptor > point as parameter. There is no way to get the root hub's struct usb_device which can be used to find > ports'device and then get ports' acpi handle and information. A bridge between usb_hcd and root hub's > usb_device is needed. I have a proposal of add root hub's struct usb_device point into the struct usb_hcd. > Does this make sense or is there other solutions? Thanks. hcd->bus.root_hub. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
