HelenOS sources

req_clear_hub_feature  590 uspace/drv/bus/usb/ehci/ehci_rh.c 		.callback = req_clear_hub_feature,
req_clear_hub_feature  509 uspace/drv/bus/usb/ohci/ohci_rh.c 		.callback = req_clear_hub_feature,
req_clear_hub_feature  366 uspace/drv/bus/usb/vhc/hub/virthubops.c 		.callback = req_clear_hub_feature