/*-----------------------------------------------------------------------------////     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS"//     SOLELY FOR USE IN DEVELOPING PROGRAMS AND SOLUTIONS FOR//     XILINX DEVICES.  BY PROVIDING THIS DESIGN, CODE, OR INFORMATION//     AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION//     OR STANDARD, XILINX IS MAKING NO REPRESENTATION THAT THIS//     IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT,//     AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE//     FOR YOUR IMPLEMENTATION.  XILINX EXPRESSLY DISCLAIMS ANY//     WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE//     IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR//     REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF//     INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS//     FOR A PARTICULAR PURPOSE.//     //     (c) Copyright 2006 Xilinx, Inc.//     All rights reserved.////---------------------------------------------------------------------------*/#include <sys/types.h>#include <errno.h>/* * lseek --  Since a serial port is non-seekable, we return an error. */off_t lseek(int fd, off_t offset, int whence){  errno = ESPIPE;  return ((off_t)-1);}