From e7bf66b29e00e725d80ea3bab5a747a2e7b23bfa Mon Sep 17 00:00:00 2001
From: Peter Lawrence <12226419+majbthrd@users.noreply.github.com>
Date: Sat, 28 Dec 2019 16:49:52 -0600
Subject: [PATCH] gracefully handle multiple SET_CONFIGURATION requests

---
 src/device/usbd.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/device/usbd.c b/src/device/usbd.c
index 1797dfafa..84f383010 100644
--- a/src/device/usbd.c
+++ b/src/device/usbd.c
@@ -518,9 +518,11 @@ static bool process_control_request(uint8_t rhport, tusb_control_request_t const
           uint8_t const cfg_num = (uint8_t) p_request->wValue;
 
           dcd_set_config(rhport, cfg_num);
+
+          if ( !_usbd_dev.configured && cfg_num ) TU_ASSERT( process_set_config(rhport, cfg_num) );
+
           _usbd_dev.configured = cfg_num ? 1 : 0;
 
-          if ( cfg_num ) TU_ASSERT( process_set_config(rhport, cfg_num) );
           tud_control_status(rhport, p_request);
         }
         break;