gpioadm_ctrl_gpio_init
extern void gpioadm_ctrl_gpio_init(const char *, xpio_ctrl_t **,
gpioadm_ctrl_gpio_init(argv[0], &ctrl, &gpio);
gpioadm_ctrl_gpio_init(argv[0], &ctrl, &gpio);
gpioadm_ctrl_gpio_init(target, &ctrl, &gpio);
gpioadm_ctrl_gpio_init(target, &ctrl, &gpio);