From eeb076454b8e9b91654f0de3ce565e4f1c1967af Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Fri, 8 May 2020 12:56:32 +0700
Subject: [PATCH] add CFG_TUSB_DEBUG_PRINTF() for log retargeting

---
 src/common/tusb_common.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/common/tusb_common.h b/src/common/tusb_common.h
index 052caef21..2389bfcd4 100644
--- a/src/common/tusb_common.h
+++ b/src/common/tusb_common.h
@@ -215,8 +215,11 @@ static inline bool     tu_bit_test (uint32_t value, uint8_t pos) { return (value
 
 void tu_print_mem(void const *buf, uint16_t count, uint8_t indent);
 
-#ifndef tu_printf
-  #define tu_printf         printf
+#ifdef CFG_TUSB_DEBUG_PRINTF
+  extern int CFG_TUSB_DEBUG_PRINTF(const char *format, ...);
+  #define tu_printf    CFG_TUSB_DEBUG_PRINTF
+#else
+  #define tu_printf    printf
 #endif
 
 static inline