From 2c335e4abfb6143129977996be043b55914b2c7c Mon Sep 17 00:00:00 2001
From: Shane Smiskol <shane@smiskol.com>
Date: Wed, 12 Oct 2022 22:34:40 -0700
Subject: [PATCH] boardd: don't multiplex OBD port on external pandas (#26062)

don't multiplex on ext pandas
old-commit-hash: bf5f9adcc853c9fef6bdcfed027a588aa1940384
---
 selfdrive/boardd/boardd.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/selfdrive/boardd/boardd.cc b/selfdrive/boardd/boardd.cc
index 77e86f9458..2d613b68ce 100644
--- a/selfdrive/boardd/boardd.cc
+++ b/selfdrive/boardd/boardd.cc
@@ -113,8 +113,9 @@ bool safety_setter_thread(std::vector<Panda *> pandas) {
   }
 
   // set to ELM327 for fingerprinting
-  for (Panda *panda : pandas) {
-    panda->set_safety_model(cereal::CarParams::SafetyModel::ELM327);
+  for (int i = 0; i < pandas.size(); i++) {
+    const uint16_t safety_param = (i > 0) ? 1U : 0U;
+    pandas[i]->set_safety_model(cereal::CarParams::SafetyModel::ELM327, safety_param);
   }
 
   Params p = Params();