ehci_device_done
ehci_device_done(xfer, err);
static void ehci_device_done(struct usb_xfer *, usb_error_t);
ehci_device_done(xfer, USB_ERR_NORMAL_COMPLETION);
ehci_device_done(xfer, USB_ERR_NORMAL_COMPLETION);
ehci_device_done(xfer, USB_ERR_TIMEOUT);
ehci_device_done(xfer, USB_ERR_CANCELLED);
ehci_device_done(xfer, USB_ERR_CANCELLED);
ehci_device_done(xfer, USB_ERR_CANCELLED);
ehci_device_done(xfer, USB_ERR_CANCELLED);
ehci_device_done(xfer, USB_ERR_CANCELLED);