Author: Julia Lawall <julia@diku.dk> Use the usb_endpoint_dir_out API function. Note that the use of USB_TYPE_MASK in the original code is incorrect; it results in a test that is always false. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // @@ struct usb_endpoint_descriptor *endpoint; expression E; @@ – (endpoint->bEndpointAddress & E) == USB_DIR_OUT …