From 2ee089c9d50c24bb201e397d5b012aa5b832df65 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Mon, 13 Nov 2023 18:46:51 -0600
Subject: [PATCH] dashboard: Run get_serial_ports in the executor (#5740)

---
 esphome/dashboard/dashboard.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/esphome/dashboard/dashboard.py b/esphome/dashboard/dashboard.py
index 3de40ff402..050564d21e 100644
--- a/esphome/dashboard/dashboard.py
+++ b/esphome/dashboard/dashboard.py
@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import asyncio
 import base64
 import binascii
 import collections
@@ -508,8 +509,8 @@ class EsphomeUpdateAllHandler(EsphomeCommandWebSocket):
 
 class SerialPortRequestHandler(BaseHandler):
     @authenticated
-    def get(self):
-        ports = get_serial_ports()
+    async def get(self):
+        ports = await asyncio.get_running_loop().run_in_executor(None, get_serial_ports)
         data = []
         for port in ports:
             desc = port.description