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 1#include <linux/bcd.h>
 2#include <linux/export.h>
 3
 4unsigned _bcd2bin(unsigned char val)
 5{
 6	return (val & 0x0f) + (val >> 4) * 10;
 7}
 8EXPORT_SYMBOL(_bcd2bin);
 9
10unsigned char _bin2bcd(unsigned val)
11{
12	return ((val / 10) << 4) + val % 10;
13}
14EXPORT_SYMBOL(_bin2bcd);