Function esp_idf_sys::i2s_set_adc_mode

pub unsafe extern "C" fn i2s_set_adc_mode(
    adc_unit: adc_unit_t, 
    adc_channel: adc1_channel_t
) -> esp_err_t

@brief Set built-in ADC mode for I2S DMA, this function will initialize ADC pad, and set ADC parameters. @param adc_unit SAR ADC unit index @param adc_channel ADC channel index @return - ESP_OK Success - ESP_ERR_INVALID_ARG Parameter error