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ad241528c4
Add CRC7 routines, used for example in MMC over SPI communication. Kerneldoc updates [akpm@linux-foundation.org: fix funny mix of const and non-const] Signed-off-by: Jan Nikitenko <jan.nikitenko@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 lines
272 B
C
15 lines
272 B
C
#ifndef _LINUX_CRC7_H
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#define _LINUX_CRC7_H
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#include <linux/types.h>
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extern const u8 crc7_syndrome_table[256];
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static inline u8 crc7_byte(u8 crc, u8 data)
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{
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return crc7_syndrome_table[(crc << 1) ^ data];
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}
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extern u8 crc7(u8 crc, const u8 *buffer, size_t len);
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#endif
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