mirror of
https://github.com/a52xq-dev/kernel.git
synced 2026-10-18 21:58:11 +07:00
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>
14 lines
272 B
C
14 lines
272 B
C
#ifndef _LINUX_CRC7_H
|
|
#define _LINUX_CRC7_H
|
|
#include <linux/types.h>
|
|
|
|
extern const u8 crc7_syndrome_table[256];
|
|
|
|
static inline u8 crc7_byte(u8 crc, u8 data)
|
|
{
|
|
return crc7_syndrome_table[(crc << 1) ^ data];
|
|
}
|
|
|
|
extern u8 crc7(u8 crc, const u8 *buffer, size_t len);
|
|
|
|
#endif
|