/* | |
* 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 |