diff --git a/src/ESP32-USBSoftHost.hpp b/src/ESP32-USBSoftHost.hpp
index 096a95e..0af6f1f 100644
--- a/src/ESP32-USBSoftHost.hpp
+++ b/src/ESP32-USBSoftHost.hpp
@@ -2,7 +2,6 @@
 #define __USB_SOFT_HOST_HPP_
 
 #ifndef BLINK_GPIO
-  //#define BLINK_GPIO 2
   #if CONFIG_IDF_TARGET_ESP32C3 || defined ESP32C3
     #define BLINK_GPIO 18
   #else
diff --git a/src/usb_host.c b/src/usb_host.c
index 4f5f3f7..b3b8780 100644
--- a/src/usb_host.c
+++ b/src/usb_host.c
@@ -88,12 +88,12 @@ int TM_OUT              = 64;    //receive time out no activity on bus
   #define TOUT  (TM_OUT)
 #endif
 
-static inline uint32_t _getCycleCount32()
+static uint32_t _getCycleCount32()
 {
   uint32_t ccount = cpu_hal_get_cycle_count();
   return  ccount;
 }
-static inline uint8_t _getCycleCount8d8(void)
+static uint8_t _getCycleCount8d8(void)
 {
   uint32_t ccount = cpu_hal_get_cycle_count();
   return ccount>>3;
@@ -376,7 +376,7 @@ uint32_t sndA[4]  = {0,0,0,0};
 
 
 
-inline void restart()
+void restart()
 {
   transmit_NRZI_buffer_cnt = 0;
 }
@@ -390,7 +390,7 @@ void decoded_receive_buffer_clear()
 
 
 
-inline void decoded_receive_buffer_put(uint8_t val)
+void decoded_receive_buffer_put(uint8_t val)
 {
   decoded_receive_buffer[decoded_receive_buffer_head] = val;
   decoded_receive_buffer_head++;
@@ -454,14 +454,14 @@ uint32_t cal16()
 
 
 
-inline void seB(int bit)
+void seB(int bit)
 {
   transmit_bits_buffer_store[transmit_bits_buffer_store_cnt++] = bit;
 }
 
 
 
-inline void pu_MSB(uint16_t msg,int N)
+void pu_MSB(uint16_t msg,int N)
 {
   for(int k=0;k<N;k++) {
     seB(msg&(1<<(N-1-k))?1:0);
@@ -470,7 +470,7 @@ inline void pu_MSB(uint16_t msg,int N)
 
 
 
-inline void pu_LSB(uint16_t msg,int N)
+void pu_LSB(uint16_t msg,int N)
 {
   for(int k=0;k<N;k++) {
     seB(msg&(1<<(k))?1:0);
diff --git a/src/usb_host.h b/src/usb_host.h
index f83b3cf..ce6cded 100644
--- a/src/usb_host.h
+++ b/src/usb_host.h
@@ -44,6 +44,8 @@ void set_onled_blink_cb( onledblinkcb_t cb );
 
 void initStates( int DP0,int DM0,int DP1,int DM1,int DP2,int DM2,int DP3,int DM3);
 void setDelay(uint8_t ticks);
+uint8_t usbGetFlags(int _usb_num);
+void usbSetFlags(int _usb_num,uint8_t flags);
 
 
 typedef struct