Instrument-control Toolkit - i2c
- Loadable Function: 
i2c =i2c([port_path], [address]) -  
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)