1a9c5fff5SDavid Brownell# gpio support: dedicated expander chips, etc 2a9c5fff5SDavid Brownell 3a9c5fff5SDavid Brownellccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG 4a9c5fff5SDavid Brownell 5d2876d08SDavid Brownellobj-$(CONFIG_HAVE_GPIO_LIB) += gpiolib.o 6d2876d08SDavid Brownell 7*15fae37dSDavid Brownellobj-$(CONFIG_GPIO_PCF857X) += pcf857x.o 8