LM78_REG_CHIPID
if ((lm78_read_value(isa, LM78_REG_CHIPID) & 0xfe) != (chipid & 0xfe))
i = i2c_smbus_read_byte_data(client, LM78_REG_CHIPID);
(lm78_read_value(data, LM78_REG_CHIPID) &
if (lm78_read_value(data, LM78_REG_CHIPID) & 0x80) {
outb_p(LM78_REG_CHIPID, address + LM78_ADDR_REG_OFFSET);