REG_FAN_CONF1
if (read_u8_from_i2c(client, REG_FAN_CONF1, &conf1) < 0)
status = i2c_smbus_read_byte_data(client, REG_FAN_CONF1);
REG_FAN_CONF1, status);
i2c_smbus_write_byte_data(client, REG_FAN_CONF1, status);
result = read_u8_from_i2c(client, REG_FAN_CONF1, &conf_reg);
i2c_smbus_write_byte_data(client, REG_FAN_CONF1, conf_reg);