LM78_REG_CONFIG
if (lm78_read_value(isa, LM78_REG_CONFIG) !=
i2c_smbus_read_byte_data(client, LM78_REG_CONFIG))
if ((i2c_smbus_read_byte_data(client, LM78_REG_CONFIG) & 0x80)
config = lm78_read_value(data, LM78_REG_CONFIG);
lm78_write_value(data, LM78_REG_CONFIG,
outb_p(LM78_REG_CONFIG, address + LM78_ADDR_REG_OFFSET);