Function esp_idf_sys::rtc_gpio_init

source ยท 
pub unsafe extern "C" fn rtc_gpio_init(
    gpio_num: gpio_num_t,
) -> esp_err_t
Expand description

@brief Init a GPIO as RTC GPIO

This function must be called when initializing a pad for an analog function.

@param gpio_num GPIO number (e.g. GPIO_NUM_12)

@return - ESP_OK success - ESP_ERR_INVALID_ARG GPIO is not an RTC IO