Enumerator at include/linux/usb/ch9.h, line 955 References: cmd/usb.c, line 326 common/usb.c, line 965 common/usb_hub.c, line 383 drivers/usb/cdns3/gadget.c, line 342 drivers/usb/common/common.c, line 44 drivers/usb/dwc3/gadget.c, line 1485 drivers/usb/dwc3/gadget.c, line 2184 drivers/usb/emul/sandbox_hub.c, line 142 drivers/usb/emul/sandbox_hub.c, line 179 drivers/usb/eth/r8152.c, line 662 drivers/usb/gadget/composite.c, line 344 drivers/usb/host/dwc2.c, line 493 drivers/usb/host/ehci-hcd.c, line 280 drivers/usb/host/ehci-hcd.c, line 291 drivers/usb/host/ehci-hcd.c, line 1310 drivers/usb/host/ohci-hcd.c, line 878 drivers/usb/host/sl811-hcd.c, line 220 drivers/usb/host/xhci-mem.c, line 781 drivers/usb/host/xhci-mem.c, line 791 drivers/usb/host/xhci-mem.c, line 838 drivers/usb/host/xhci.c, line 367 drivers/usb/musb-new/musb_host.c, line 1997 drivers/usb/musb-new/musb_uboot.c, line 207 drivers/usb/musb-new/musb_uboot.c, line 208 drivers/usb/musb/musb_hcd.c, line 388 include/linux/usb/ch9.h, line 955