HelenOS sources

usb_speed_is_11    88 uspace/drv/bus/usb/ehci/hw_struct/queue_head.c 	if (usb_speed_is_11(ep->device->speed)) {
usb_speed_is_11   112 uspace/lib/usbhost/src/bus.c 	if (dev->hub->speed == USB_SPEED_HIGH && usb_speed_is_11(dev->speed)) {