From 2f35704c8dc29f9dfd0ca348750e8089a6c96818 Mon Sep 17 00:00:00 2001
From: Zhou Xiao <zhouxiao@espressif.com>
Date: Fri, 15 May 2026 18:35:28 +0800
Subject: [PATCH] fix(ble): added missed dataclass decorator for backport

---
 tools/ble/ble_uart_bridge/src/core/models.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/ble/ble_uart_bridge/src/core/models.py b/tools/ble/ble_uart_bridge/src/core/models.py
index 0198138c6fb..03089898db8 100644
--- a/tools/ble/ble_uart_bridge/src/core/models.py
+++ b/tools/ble/ble_uart_bridge/src/core/models.py
@@ -3,6 +3,7 @@
 
 from __future__ import annotations
 
+from dataclasses import dataclass
 from enum import Enum
 
 from .constants import NUS_RX_CHAR_UUID
@@ -16,12 +17,14 @@ class ConnectionState(str, Enum):
     CONNECTED = 'CONNECTED'
 
 
+@dataclass(frozen=True)
 class DeviceInfo:
     device_id: str
     name: str | None
     rssi: int | None
 
 
+@dataclass(frozen=True)
 class BLEUARTProfile:
     service_uuid: str = NUS_SERVICE_UUID
     rx_char_uuid: str = NUS_RX_CHAR_UUID