adc2_pad_get_io_num() function

Get the GPIO number of a specific ADC2 channel.

Syntax

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Summary

Declaration

Definition

from adc.h:182

esp_err_t adc2_pad_get_io_num(adc2_channel_t channel, gpio_num_t *gpio_num);

Implemented in adc_legacy.c:127

Arguments

Argument

Description

channel

Channel to get the GPIO number

gpio_num

output buffer to hold the GPIO number

Return value

- ESP_OK if success - ESP_ERR_INVALID_ARG if channel not valid

References

Code

Location

esp_err_t adc2_pad_get_io_num(adc2_channel_t channel, gpio_num_t *gpio_num)

adc_legacy.c:127

esp_err_t adc2_pad_get_io_num(adc2_channel_t channel, gpio_num_t *gpio_num);

adc.h:182

Call Tree

adc2_pad_get_io_num() calls 2 functions:

adc2_pad_get_io_num()

esp_log_timestamp()

esp_log_write()

Data Use

adc2_pad_get_io_num() reads 8 variables:

esp_log_level_t::ESP_LOG_ERROR

esp_log_level_t::ESP_LOG_WARN

esp_log_level_t::ESP_LOG_INFO

esp_log_level_t::ESP_LOG_DEBUG

esp_log_level_t::ESP_LOG_VERBOSE

adc_unit_t::ADC_UNIT_2

ADC_TAG

adc_channel_io_map

adc2_pad_get_io_num()

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Lifecycle

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