Intel IOPx3xx and IXP4xx on-chip I2C interface

modulename: i2c-iop3xx.ko

configname: CONFIG_I2C_IOP3XX

Linux Kernel Configuration
└─>Device Drivers
└─>I2C support
└─>I2C Hardware Bus support
└─>Intel IOPx3xx and IXP4xx on-chip I2C interface
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Say Y here if you want to use the IIC bus controller on
the Intel IOPx3xx I/O Processors or IXP4xx Network Processors.

This driver can also be built as a module. If so, the module
will be called i2c-iop3xx.

source code: