*** sio.c~	Wed Mar 18 20:16:17 2009
--- sio.c	Mon Mar 23 21:06:25 2009
***************
*** 29,34 ****
--- 29,35 ----
  
  int	sio_send_frame(const unsigned char *buf, int size)
  {
+ #if 0
  	int	i;
  
  	for (i = 0; i < size; i++) {
***************
*** 37,46 ****
--- 38,51 ----
  	}
  
  	return i;
+ #else
+ 	return size;					// do nothing
+ #endif
  }
  
  int	sio_recv_frame(unsigned char* buf, int size)
  {
+ #if 0
  	int	i, s, c;
  
  	for (i = 0; i < size; i++) {
***************
*** 57,62 ****
--- 62,73 ----
  	}
  
  	return i;
+ #else
+ 	int	i;
+ 
+ 	for (i = 0; i < size; i++) *buf++ = 0;		// receive dummy
+ 	return i;
+ #endif
  }
  
  void	sio_init(void)