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typedef struct my_netif_driver_s {
        esp_netif_driver_base_t base;           /*!< base structure reserved as esp-netif driver */
        driver_impl             *h;             /*!< handle of driver implementation */
    } my_netif_driver_t;

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static esp_err_t my_post_attach_start(esp_netif_t * esp_netif, void * args)
{
    my_netif_driver_t *driver = args;
    const esp_netif_driver_ifconfig_t driver_ifconfig = {
            .driver_free_rx_buffer = my_free_rx_buf,
            .transmit = my_transmit,
            .handle = driver->driver_impl
    };
    driver->base.netif = esp_netif;
    ESP_ERROR_CHECK(esp_netif_set_driver_config(esp_netif, &driver_ifconfig));
    my_driver_start(driver->driver_impl);
    return ESP_OK;
}

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static my_netif_driver_t qca_driver;
ESP_ERROR_CHECK(esp_netif_attach(qca_netif,&qca_driver ));