VCNL4000_COMMAND 200 drivers/iio/light/vcnl4000.c ret = i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, VCNL4000_COMMAND 207 drivers/iio/light/vcnl4000.c ret = i2c_smbus_read_byte_data(data->client, VCNL4000_COMMAND);