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a5cfc1ec5 [PATCH] bit reverse library ... Browse Code »

This patch provides two bit reverse functions and bit reverse table.

- reverse the order of bits in a u32 value

u8 bitrev8(u8 x);

- reverse the order of bits in a u32 value

u32 bitrev32(u32 x);

- byte reverse table

const u8 byte_rev_table[256];

Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds

Akinobu Mita
2006-12-09 00:28:39 +0800

bitrev.h 241 Bytes

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#ifndef _LINUX_BITREV_H
#define _LINUX_BITREV_H

#include <linux/types.h>

extern u8 const byte_rev_table[256];

static inline u8 bitrev8(u8 byte)
{
	return byte_rev_table[byte];
}

extern u32 bitrev32(u32 in);

#endif /* _LINUX_BITREV_H */