Nvidia nForce2, nForce3 and nForce4

modulename: i2c-nforce2.ko

configname: CONFIG_I2C_NFORCE2

Linux Kernel Configuration
└─>Device Drivers
└─>I2C support
└─>I2C Hardware Bus support
└─>PCI support
└─>Nvidia nForce2, nForce3 and nForce4
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
If you say yes to this option, support will be included for the Nvidia
nForce2, nForce3 and nForce4 families of mainboard I2C interfaces.

This driver can also be built as a module. If so, the module
will be called i2c-nforce2.

source code: