1#include <linux/bcd.h>
 2#include <linux/module.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);