diff --git a/lib/rt-thread/tusb_config.h b/lib/rt-thread/tusb_config.h
index 9d1162c13..a11aabdc0 100644
--- a/lib/rt-thread/tusb_config.h
+++ b/lib/rt-thread/tusb_config.h
@@ -75,6 +75,7 @@ extern "C" {
 //--------------------------------------------------------------------
 // DEBUG CONFIGURATION
 //--------------------------------------------------------------------
+#define CFG_TUSB_DEBUG 3
 #ifdef CFG_TUSB_DEBUG
 #define CFG_TUSB_DEBUG_PRINTF rt_kprintf
 #endif /* CFG_TUSB_DEBUG */
diff --git a/lib/rt-thread/tusb_rt_thread_port.c b/lib/rt-thread/tusb_rt_thread_port.c
index 0b43ff008..915c2e664 100644
--- a/lib/rt-thread/tusb_rt_thread_port.c
+++ b/lib/rt-thread/tusb_rt_thread_port.c
@@ -27,6 +27,7 @@
 #include <rtthread.h>
 #include "bsp_init.h"
 #include "stm32f4xx.h"
+#include "dcd.h"
 
 #define  DBG_TAG  "TinyUSB"
 #define  DBG_LVL  DBG_INFO
@@ -79,6 +80,8 @@ static int init_tinyusb(void)
 
     //call tusb_rhport_init()
     tusb_init();
+    dcd_int_enable(TUD_OPT_RHPORT);
+
 
 #ifdef RT_USING_HEAP
     tid = rt_thread_create("tusb", tusb_thread_entry, RT_NULL,
diff --git a/src/common/tusb_debug.h b/src/common/tusb_debug.h
index 1d0c6f1ad..4feb99a4c 100644
--- a/src/common/tusb_debug.h
+++ b/src/common/tusb_debug.h
@@ -52,7 +52,7 @@ extern char const* const tu_str_xfer_result[];
 void tu_print_mem(void const *buf, uint32_t count, uint8_t indent);
 
 #ifdef CFG_TUSB_DEBUG_PRINTF
-  extern int CFG_TUSB_DEBUG_PRINTF(const char *format, ...);
+  extern void CFG_TUSB_DEBUG_PRINTF(const char *format, ...);
   #define tu_printf    CFG_TUSB_DEBUG_PRINTF
 #else
   #define tu_printf    printf
diff --git a/src/device/usbd.c b/src/device/usbd.c
index b09d02fbd..15478b5a5 100644
--- a/src/device/usbd.c
+++ b/src/device/usbd.c
@@ -533,7 +533,7 @@ bool tud_rhport_init(uint8_t rhport, const tusb_rhport_init_t* rh_init) {
 
   // Init device controller driver
   TU_ASSERT(dcd_init(rhport, rh_init));
-  dcd_int_enable(rhport);
+  // dcd_int_enable(rhport);
 
   return true;
 }