Halli Jürgen, > > + if (machine_is_touchbook()) > > Where does the machine_is_touchbook() comes from? arch/arm/tools/mach-types + arch/arm/tools/gen-mach-types I guess. Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |