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fix(usb_device_ncm): Fix example support for iOS devices

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NCM device usage with an iOS device as a USB Host
    Closes https://github.com/espressif/esp-idf/issues/18079
This commit is contained in:
peter.marcisovsky
2026-02-19 09:21:34 +01:00
parent 17cf9c7264
commit c9c0af84b7
1 changed files with 9 additions and 1 deletions
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examples/peripherals/usb/device/tusb_ncm/main/tusb_ncm_main.c
+9 -1
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2023-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Unlicense OR CC0-1.0
*/
@@ -49,6 +49,11 @@ static esp_err_t pkt_wifi2usb(void *buffer, uint16_t len, void *eb)
return ESP_OK;
}
static void usb_device_set_link_state(bool link_up)
{
tud_network_link_state(0, link_up);
}
static void wifi_event_handler(void *arg, esp_event_base_t event_base,
int32_t event_id, void *event_data)
{
@@ -58,11 +63,13 @@ static void wifi_event_handler(void *arg, esp_event_base_t event_base,
ESP_LOGI(TAG, "WiFi STA disconnected");
*is_connected = false;
esp_wifi_internal_reg_rxcb(WIFI_IF_STA, NULL);
usb_device_set_link_state(false);
esp_wifi_connect();
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_CONNECTED) {
ESP_LOGI(TAG, "WiFi STA connected");
esp_wifi_internal_reg_rxcb(WIFI_IF_STA, pkt_wifi2usb);
*is_connected = true;
usb_device_set_link_state(true);
}
}
@@ -113,6 +120,7 @@ void app_main(void)
uint8_t *mac = net_config.mac_addr;
ESP_LOGI(TAG, "Network interface HW address: %02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
ESP_GOTO_ON_ERROR(tinyusb_net_init(&net_config), err, TAG, "Failed to initialize TinyUSB NCM device class");
usb_device_set_link_state(false);
ESP_LOGI(TAG, "WiFi initialization");
ESP_GOTO_ON_ERROR(start_wifi(&s_is_wifi_connected), err, TAG, "Failed to init and start WiFi");