static int ehci_update_device(struct usb_hcd *hcd, struct usb_device *udev) { struct ehci_hcd *ehci = hcd_to_ehci(hcd); int rc = 0; if (!udev->parent) /* udev is root hub itself, impossible */ rc = -1; /* we only support lpm device connected to root hub yet */ if (ehci->has_lpm && !udev->parent->parent) { rc = ehci_lpm_set_da(ehci, udev->devnum, udev->portnum); if (!rc) rc = ehci_lpm_check(ehci, udev->portnum); } return rc; }
static int ehci_update_device(struct usb_hcd *hcd, struct usb_device *udev) { struct ehci_hcd *ehci = hcd_to_ehci(hcd); int rc = 0; if (!udev->parent) rc = -1; if (ehci->has_lpm && !udev->parent->parent) { rc = ehci_lpm_set_da(ehci, udev->devnum, udev->portnum); if (!rc) rc = ehci_lpm_check(ehci, udev->portnum); } return rc; }