Function esp_idf_hal::sys::adc2_pad_get_io_num

source · 
pub unsafe extern "C" fn adc2_pad_get_io_num(
    channel: u32,
    gpio_num: *mut i32
) -> i32
Expand description

@brief Get the GPIO number of a specific ADC2 channel.

@param channel Channel to get the GPIO number

@param gpio_num output buffer to hold the GPIO number

@return

  • ESP_OK if success
  • ESP_ERR_INVALID_ARG if channel not valid