USB_HUB_PR_HS_SINGLE_TT 728 drivers/usb/core/hcd.c bDeviceProtocol = USB_HUB_PR_HS_SINGLE_TT; USB_HUB_PR_HS_SINGLE_TT 1499 drivers/usb/core/hub.c case USB_HUB_PR_HS_SINGLE_TT: