/*
   * Copyright (c) 2013 Google, Inc
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  
  #ifndef __linux_crc8_h
  #define __linux_crc8_h
  
  /**
   * crc8() - Calculate and return CRC-8 of the data
   *
   * This uses an x^8 + x^2 + x + 1 polynomial.  A table-based algorithm would
   * be faster, but for only a few bytes it isn't worth the code size
   *
   * @crc_start: CRC8 start value
   * @vptr: Buffer to checksum
   * @len: Length of buffer in bytes
   * @return CRC8 checksum
   */
  unsigned int crc8(unsigned int crc_start, const unsigned char *vptr, int len);
  
  #endif