A mechanically controllable valve drive includes a gas exchange valve on which a transmission arrangement acts via a working contour. The reinforcement device 4 is firmly secured to the underside of an arch portion 2M of the midsole 2. The on-demand requester object includes a minifilter associated with a filter manager in an IO stack. Thus, the electronic control unit of low-cost configuration is capable of performing a scan test by making use of part of the scan chain circuits designed for the component inspection.