HelenOS sources

HUB_STATUS_CHANGE_EP   85 uspace/drv/bus/usb/usbhub/usbhub.c     status_change_single_tt_only = HUB_STATUS_CHANGE_EP(0),
HUB_STATUS_CHANGE_EP   86 uspace/drv/bus/usb/usbhub/usbhub.c     status_change_mtt_available = HUB_STATUS_CHANGE_EP(1);
HelenOS homepage, sources at GitHub