The present invention provides a method of forming a via hole, or a via, from a lower side of a substrate for electronic devices towards an upper side of a substrate at least partly through the substrate. The at least one bus device may include selection circuitry for selecting one of the communications buses based upon the plurality of bus enable signals while being tolerant of an error on at least one of the bus enable signals. An end-user’s performance reproduction device, such as an enhanced radio or a television set, then accesses and reproduces the locally stored song or movie. The rotary vane pump also includes a plurality of vanes, each vane moveably disposed in one of the plurality of slots. By applying a force through the lever arm, the portion of an edge of the fence post received by the notch can be crimped andor otherwise aligned at a desired location along the length of the fence post.