HelenOS sources
USB_DESCTYPE_ENDPOINT 210 uspace/app/usbinfo/info.c _BRANCH(USB_DESCTYPE_ENDPOINT,
USB_DESCTYPE_ENDPOINT 230 uspace/app/vuhid/device.c descr_ep_in->descriptor_type = USB_DESCTYPE_ENDPOINT;
USB_DESCTYPE_ENDPOINT 246 uspace/app/vuhid/device.c descr_ep_out->descriptor_type = USB_DESCTYPE_ENDPOINT;
USB_DESCTYPE_ENDPOINT 90 uspace/drv/bus/usb/vhc/hub/virthub.c .descriptor_type = USB_DESCTYPE_ENDPOINT,
USB_DESCTYPE_ENDPOINT 79 uspace/lib/usb/src/dump.c { USB_DESCTYPE_ENDPOINT, usb_dump_descriptor_endpoint },
USB_DESCTYPE_ENDPOINT 74 uspace/lib/usbdev/src/pipesinit.c return descriptor[1] == USB_DESCTYPE_ENDPOINT;
USB_DESCTYPE_ENDPOINT 74 uspace/lib/usbvirt/src/virthub_descriptors.c .descriptor_type = USB_DESCTYPE_ENDPOINT,
HelenOS homepage, sources at GitHub