From edbccb5e19692a95d72f0467901818a0e1cf7251 Mon Sep 17 00:00:00 2001
From: graham sanderson <graham.sanderson@raspberrypi.com>
Date: Sun, 30 May 2021 18:37:51 -0500
Subject: [PATCH] don't override CFG_TUSB_OS in cdc_dual_ports example

---
 examples/device/cdc_dual_ports/src/tusb_config.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/examples/device/cdc_dual_ports/src/tusb_config.h b/examples/device/cdc_dual_ports/src/tusb_config.h
index 7db520dd..c7e87bf6 100644
--- a/examples/device/cdc_dual_ports/src/tusb_config.h
+++ b/examples/device/cdc_dual_ports/src/tusb_config.h
@@ -64,8 +64,9 @@
   #error "Incorrect RHPort configuration"
 #endif
 
-// This example doesn't use an RTOS
+#ifndef CFG_TUSB_OS
 #define CFG_TUSB_OS                 OPT_OS_NONE
+#endif
 
 // CFG_TUSB_DEBUG is defined by compiler in DEBUG build
 // #define CFG_TUSB_DEBUG           0