Control device for a gearbox, in particular for a motor-vehicle gearbox, with a system for identifying the engaged gear

A control device for a gearbox, comprising an elongated mechanical transmission member interposed between the gearbox and a control member for transmitting to the gearbox the commands imparted through the control member, in such a manner that the engaged gear is linked to the linear position of the transmission member, wherein the transmission member includes a rigid end portion, wherein the device is provided with a linear position sensor comprising a movable reference element and a stationary detection element arranged to detect the linear position of the reference element, wherein the movable reference element is mechanically connected to the rigid end portion and spaced apart from it, so as to be connected for translation with the transmission member, wherein the transmission member is a flexible transmission member including a sheath and a tension wire slidably received within the sheath, the rigid end portion having a rod-like element attached to an end of the tension wire, and a guide sleeve for guiding said rod-like element, and wherein the stationary detection element is mounted on the guide sleeve.