usb: device_next: cdc_ncm: disable data interface when disconnected

Disable the data interface when the device is disconnected or when the
CDC-NCM and CDC-ECM instances are disabled for any reason.

Signed-off-by: Johann Fischer <[email protected]>

Author: jfischer-no

subsys/usb/device_next/class/usbd_cdc_ecm.c

@@ -402,6 +402,7 @@ static void usbd_cdc_ecm_disable(struct usbd_class_data *const c_data)
 	const struct device *dev = usbd_class_get_private(c_data);
 	struct cdc_ecm_eth_data *data = dev->data;
 
+	atomic_clear_bit(&data->state, CDC_ECM_DATA_IFACE_ENABLED);
 	atomic_clear_bit(&data->state, CDC_ECM_CLASS_SUSPENDED);
 	LOG_INF("Disabled %s", c_data->name);
 }

subsys/usb/device_next/class/usbd_cdc_ncm.c

@@ -865,6 +865,7 @@ static void usbd_cdc_ncm_disable(struct usbd_class_data *const c_data)
 	const struct device *dev = usbd_class_get_private(c_data);
 	struct cdc_ncm_eth_data *data = dev->data;
 
+	atomic_clear_bit(&data->state, CDC_NCM_DATA_IFACE_ENABLED);
 	atomic_clear_bit(&data->state, CDC_NCM_CLASS_SUSPENDED);
 
 	LOG_INF("Disabled %s", c_data->name);