How do i read multiple bytes with one command on arduino?

I have a CCS811 sensor and the bytes i need are in the same register (0x02), the datasheet says it can be up to 8bytes. there are no commands to read more than 2 bytes in the document, so is there another way than using:

readRegister(dev,[address],[precision])?

I only use the Arduino Toolbox for matlab right now.

[Eric Prandovszky]

Were you able to get this going? I noticed there is a driver for the CCS811 in the arduino support package for 2022a.

Answer 1

[Helper]

The 'read' function of i2cdev can be used. For more information please refer to the following documentation link https://www.mathworks.com/help/supportpkg/arduinoio/ref/read.html

[Walter Roberson]

Pommel Knight https://www.mathworks.com/matlabcentral/profile/authors/24894334 comments to Staff,

"Doesn't answer the question"

[Walter Roberson]

@Pommel Knight:

The CCS811 sensor is connected by way of I2C bus according to https://learn.adafruit.com/adafruit-ccs811-air-quality-sensor

The page that staff linked to is specifically about a read() method for reading from I2C bus attached to Arduino, https://www.mathworks.com/help/supportpkg/arduinoio/ref/arduinoio.i2cdev.read.html and the read() method has a required argument that is the number of bytes to read.

Thus, using read(dev, 8) should return the 8 bytes that the poster needs.

Is this not an answer to the question?