This driver is a IoDrvFB based wrapper around the Raspberry I2C MEGAIO driver v1.1.0.0 by Sequent Microsystems.
To optimise the dataflow, some (minimal) code in I2C MEGAIO driver v1.1.0.0 has been revised.
100% Open source,
100% Pure IEC 61131-3 code (ST)
Sequent uploaded a video about the Mega IO Industrial for Raspberry Pi, check it out :