Merge branch 'refactor/usb_host_hid_example_open_proto_only' into 'master'

refactor(usb_host_example): Added opening only for HID device with proto

See merge request espressif/esp-idf!40228

Author: roma-jam

examples/peripherals/usb/host/hid/main/hid_host_example.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Unlicense OR CC0-1.0
  */
@@ -434,14 +434,16 @@ void hid_host_device_event(hid_host_device_handle_t hid_device_handle,
             .callback_arg = NULL
         };
 
-        ESP_ERROR_CHECK(hid_host_device_open(hid_device_handle, &dev_config));
-        if (HID_SUBCLASS_BOOT_INTERFACE == dev_params.sub_class) {
-            ESP_ERROR_CHECK(hid_class_request_set_protocol(hid_device_handle, HID_REPORT_PROTOCOL_BOOT));
-            if (HID_PROTOCOL_KEYBOARD == dev_params.proto) {
-                ESP_ERROR_CHECK(hid_class_request_set_idle(hid_device_handle, 0, 0));
+        if (dev_params.proto != HID_PROTOCOL_NONE) {
+            ESP_ERROR_CHECK(hid_host_device_open(hid_device_handle, &dev_config));
+            if (HID_SUBCLASS_BOOT_INTERFACE == dev_params.sub_class) {
+                ESP_ERROR_CHECK(hid_class_request_set_protocol(hid_device_handle, HID_REPORT_PROTOCOL_BOOT));
+                if (HID_PROTOCOL_KEYBOARD == dev_params.proto) {
+                    ESP_ERROR_CHECK(hid_class_request_set_idle(hid_device_handle, 0, 0));
+                }
             }
+            ESP_ERROR_CHECK(hid_host_device_start(hid_device_handle));
         }
-        ESP_ERROR_CHECK(hid_host_device_start(hid_device_handle));
         break;
     default:
         break;