1 #include <linux/bcd.h> 2 #include <linux/module.h> 3 bcd2bin(unsigned char val)4unsigned bcd2bin(unsigned char val) 5 { 6 return (val & 0x0f) + (val >> 4) * 10; 7 } 8 EXPORT_SYMBOL(bcd2bin); 9 bin2bcd(unsigned val)10unsigned char bin2bcd(unsigned val) 11 { 12 return ((val / 10) << 4) + val % 10; 13 } 14 EXPORT_SYMBOL(bin2bcd); 15