From 6912f23618d629a4d0d9ec5626df5fc79b329c80 Mon Sep 17 00:00:00 2001
From: aineoae86-sys <ai.neo.ae86@gmail.com>
Date: Sun, 5 Jul 2026 15:38:17 +0800
Subject: Fix usbd empty builtin driver warning

Generated-by: OpenAI Codex
Signed-off-by: aineoae86-sys <ai.neo.ae86@gmail.com>
---
 src/device/usbd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/device/usbd.c b/src/device/usbd.c
index 70141a5bb..fc658f1c1 100644
--- a/src/device/usbd.c
+++ b/src/device/usbd.c
@@ -378,7 +378,7 @@ TU_ATTR_ALWAYS_INLINE static inline usbd_class_driver_t const * get_driver(uint8
     driver = &_app_driver[drvid];
   } else{
     drvid -= _app_driver_count;
-    if (drvid < BUILTIN_DRIVER_COUNT) {
+    if (BUILTIN_DRIVER_COUNT > 0 && drvid < BUILTIN_DRIVER_COUNT) {
       driver = &_usbd_driver[drvid];
     }
   }
-- 
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