feat(usbh_cdc): skip open usb hub device

Author: lijunru-hub

components/usb/iot_usbh_cdc/CHANGELOG.md

@@ -1,5 +1,11 @@
 # ChangeLog
 
+## v1.1.0 - 2025-05-13
+
+### Features:
+
+* Skip open usb hub device.
+
 ## v1.1.0 - 2025-04-21
 
 ### Features:

components/usb/iot_usbh_cdc/idf_component.yml

@@ -1,4 +1,4 @@
-version: "1.1.0"
+version: "1.1.1"
 targets:
   - esp32s2
   - esp32s3

components/usb/iot_usbh_cdc/iot_usbh_cdc.c

@@ -233,16 +233,22 @@ static void usb_event_cb(const usb_host_client_event_msg_t *event_msg, void *arg
         }
         assert(current_device);
 
+        const usb_device_desc_t *device_desc;
+        ESP_ERROR_CHECK(usb_host_get_device_descriptor(current_device, &device_desc));
+
+        if (device_desc->bDeviceClass == USB_CLASS_HUB) {
+            ESP_LOGI(TAG, "Detect hub device, skip");
+            usb_host_device_close(p_usbh_cdc_obj->cdc_client_hdl, current_device);
+            return;
+        }
+
         new_dev_cb_t *new_dev_cb;
         SLIST_FOREACH(new_dev_cb, &p_usbh_cdc_obj->new_dev_cb_list, list_entry) {
             if (new_dev_cb->cb) {
                 new_dev_cb->cb(current_device, new_dev_cb->user_data);
             }
         }
 
-        const usb_device_desc_t *device_desc;
-        ESP_ERROR_CHECK(usb_host_get_device_descriptor(current_device, &device_desc));
-
         usbh_cdc_t *cdc;
         bool if_opened = false;
         SLIST_FOREACH(cdc, &p_usbh_cdc_obj->cdc_devices_list, list_entry) {
@@ -707,6 +713,12 @@ static esp_err_t _cdc_find_and_open_usb_device(usbh_cdc_t *cdc)
         const usb_device_desc_t *device_desc;
         ESP_ERROR_CHECK(usb_host_get_device_descriptor(current_device, &device_desc));
 
+        if (device_desc->bDeviceClass == USB_CLASS_HUB) {
+            ESP_LOGD(TAG, "Detect hub device, skip");
+            usb_host_device_close(p_usbh_cdc_obj->cdc_client_hdl, current_device);
+            continue;
+        }
+
         if ((cdc->vid == device_desc->idVendor || cdc->vid == CDC_HOST_ANY_VID) &&
                 (cdc->pid == device_desc->idProduct || cdc->pid == CDC_HOST_ANY_PID)) {
             // Return path 2: