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 GPIOLIB help Say Y here to enable GPIO based switch support. config SWITCH_MADERA tristate "Cirrus Logic Madera codec support" depends on MFD_MADERA && INPUT && SND_SOC help Say Y here to enable support for external accessory detection on Cirrus Logic Madera class codecs. endif # SWITCH