HelenOS sources

USB_HUB_REQUEST_CLEAR_FEATURE  588 uspace/drv/bus/usb/ehci/ehci_rh.c 		CLASS_REQ_OUT(USB_REQUEST_RECIPIENT_DEVICE, USB_HUB_REQUEST_CLEAR_FEATURE),
USB_HUB_REQUEST_CLEAR_FEATURE  593 uspace/drv/bus/usb/ehci/ehci_rh.c 		CLASS_REQ_OUT(USB_REQUEST_RECIPIENT_OTHER, USB_HUB_REQUEST_CLEAR_FEATURE),
USB_HUB_REQUEST_CLEAR_FEATURE  507 uspace/drv/bus/usb/ohci/ohci_rh.c 		CLASS_REQ_OUT(USB_REQUEST_RECIPIENT_DEVICE, USB_HUB_REQUEST_CLEAR_FEATURE),
USB_HUB_REQUEST_CLEAR_FEATURE  512 uspace/drv/bus/usb/ohci/ohci_rh.c 		CLASS_REQ_OUT(USB_REQUEST_RECIPIENT_OTHER, USB_HUB_REQUEST_CLEAR_FEATURE),
USB_HUB_REQUEST_CLEAR_FEATURE  465 uspace/drv/bus/usb/uhci/uhci_rh.c 		CLASS_REQ_OUT(USB_REQUEST_RECIPIENT_DEVICE, USB_HUB_REQUEST_CLEAR_FEATURE),
USB_HUB_REQUEST_CLEAR_FEATURE  474 uspace/drv/bus/usb/uhci/uhci_rh.c 		CLASS_REQ_OUT(USB_REQUEST_RECIPIENT_OTHER, USB_HUB_REQUEST_CLEAR_FEATURE),
USB_HUB_REQUEST_CLEAR_FEATURE  364 uspace/drv/bus/usb/vhc/hub/virthubops.c 		CLASS_REQ_OUT(REC_DEVICE, USB_HUB_REQUEST_CLEAR_FEATURE),
USB_HUB_REQUEST_CLEAR_FEATURE  369 uspace/drv/bus/usb/vhc/hub/virthubops.c 		CLASS_REQ_OUT(REC_OTHER, USB_HUB_REQUEST_CLEAR_FEATURE),
HelenOS homepage, sources at GitHub