AK4113_WRITABLE_REGS
unsigned char regmap[AK4113_WRITABLE_REGS];
if (reg >= AK4113_WRITABLE_REGS)
for (reg = 1; reg < AK4113_WRITABLE_REGS; reg++)
for (reg = 0; reg < AK4113_WRITABLE_REGS ; reg++)