menuconfig SWITCH tristate "Switch class support" help Say Y here to enable switch class support. This allows monitoring switches by userspace via sysfs and uevent. if SWITCH config SWITCH_GPIO tristate "GPIO Swith support" depends on GENERIC_GPIO help Say Y here to enable GPIO based switch support. config SWITCH_FSA8008 bool "FSA8008 Headset detection driver" help Say Y here to enable FSA8008 driver endif # SWITCH