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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);