Closes I2C connection obj

Opens I2C connection obj

This currently is a dummy function to improve compatibility to MATLAB

Reads data from I2C instrument

Inputs ¶

obj is a I2C object.
size Number of values to read. (Default: 100).
precision precision of data.

Outputs ¶

data data values.
count number of values read.
errmsg read operation error message.

Writes data to I2C instrument

Inputs ¶

obj is a I2C object.
data data to write.
precision precision of data.

Outputs ¶

returns number of bytes written.

Get the properties of i2c object.

Inputs ¶

i2c - instance of octave_i2c class.

property - name of property.

Outputs ¶

When property was specified, return the value of that property.
otherwise return the values of all properties as a structure.

See also: @octave_i2c/set.

Set the properties of i2c object.

Inputs ¶

obj - instance of octave_i2c class.
property - name of property.

If property is a cell so must be value, it sets the values of all matching properties.

The function also accepts property-value pairs.

Properties ¶

’name’

Set the name for the i2c socket.

’remoteaddress’

Set the remote address for the i2c socket.

Outputs ¶

None

See also: @octave_i2c/get.

Open i2c interface.

Inputs ¶

port_path - the interface device port/path of type String. If omitted defaults to ’/dev/i2c-0’.
address - the slave device address. If omitted must be set using i2c_addr() call.

Outputs ¶

i2c - An instance of octave_i2c class.

Properties ¶

The i2c object has the following properties:

name

Name of the object

remoteaddress

the slave device address

port

The interface driver port (readonly)

Set new or get existing i2c slave device address.

Inputs ¶

i2c - instance of octave_i2c class.
address - i2c slave device address of type Integer. The address is passed in the 7 or 10 lower bits of the argument.

Outputs ¶

addr - If address parameter is omitted, the i2c_addr() shall return current i2c slave device address.

Close the interface and release a file descriptor.

Inputs ¶

i2c - instance of octave_i2c class.

Outputs ¶

None

Read from i2c slave device.

Inputs ¶

i2c - instance of octave_i2c class.
n - number of bytes to attempt to read of type Integer.

Outputs ¶

The i2c_read() shall return number of bytes successfully read in count as Integer and the bytes themselves in data as uint8 array.

Write data to a i2c slave device.

Inputs ¶

i2c - instance of octave_i2c class.
data - data, of type uint8, to be written to the slave device.

Outputs ¶

Upon successful completion, i2c_write() shall return the number of bytes written as the result n.