USB_DIR_IN
usb_find_host_endpoint(dev, PIPE_CONTROL, (endpoint) | USB_DIR_IN)
usb_find_host_endpoint(dev, PIPE_ISOCHRONOUS, (endpoint) | USB_DIR_IN)
usb_find_host_endpoint(dev, PIPE_BULK, (endpoint) | USB_DIR_IN)
usb_find_host_endpoint(dev, PIPE_INTERRUPT, (endpoint) | USB_DIR_IN)