From 45430931efdc75d4cef8f091d990c8a574f7a113 Mon Sep 17 00:00:00 2001
From: mr-one <15377594951@163.com>
Date: Sun, 6 Sep 2026 18:03:09 +0800
Subject: [PATCH] python: treat DOS as internal panda for C3XL (USB-only, no
 SPI)

---
 panda/python/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/panda/python/__init__.py b/panda/python/__init__.py
index 7e3f07032..43b60b421 100644
--- a/panda/python/__init__.py
+++ b/panda/python/__init__.py
@@ -160,7 +160,7 @@ class Panda:
   F4_DEVICES = [HW_TYPE_BLACK_PANDA, HW_TYPE_DOS]
   SUPPORTED_DEVICES = H7_DEVICES + F4_DEVICES
 
-  INTERNAL_DEVICES = (HW_TYPE_TRES, HW_TYPE_CUATRO)
+  INTERNAL_DEVICES = (HW_TYPE_TRES, HW_TYPE_CUATRO, HW_TYPE_DOS)
 
   HARNESS_STATUS_NC = 0
   HARNESS_STATUS_NORMAL = 1