1 /*
2  * SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  */
6 
7 // DO NOT USE THESE APIS IN YOUR APPLICATIONS
8 // The following APIs are for internal test.
9 
10 #pragma once
11 
12 #include "esp_err.h"
13 #include "driver/rmt_types.h"
14 
15 #ifdef __cplusplus
16 extern "C" {
17 #endif
18 
19 /**
20  * @brief Get the unique ID of RMT channel
21  *
22  * @param[in] channel RMT generic channel that created by `rmt_new_tx_channel()` or `rmt_new_rx_channel()`
23  * @param[out] ret_id The unique ID of RMT channel
24  * @return
25  *      - ESP_OK: Get RMT channel ID successfully
26  *      - ESP_ERR_INVALID_ARG: Get RMT channel ID failed because of invalid argument
27  *      - ESP_FAIL: Get RMT channel ID failed because of other reasons
28  */
29 esp_err_t rmt_get_channel_id(rmt_channel_handle_t channel, int *ret_id);
30 
31 #ifdef __cplusplus
32 }
33 #endif
34