ADM1025_REG_CONFIG
if ((i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG) & 0x80)
reg = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);
i2c_smbus_write_byte_data(client, ADM1025_REG_CONFIG,
config = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);