GPIO38_SD_PWEN 578 arch/arm/mach-pxa/em-x270.c err = gpio_request(GPIO38_SD_PWEN, "sdio power"); GPIO38_SD_PWEN 584 arch/arm/mach-pxa/em-x270.c gpio_direction_output(GPIO38_SD_PWEN, 1); GPIO38_SD_PWEN 618 arch/arm/mach-pxa/em-x270.c gpio_free(GPIO38_SD_PWEN);