Intel PXA2XX I2C adapter

modulename: i2c-pxa.ko

configname: CONFIG_I2C_PXA

Linux Kernel Configuration
└─>Device Drivers
└─>I2C support
└─>I2C Hardware Bus support
└─>Intel PXA2XX I2C adapter
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
If you have devices in the PXA I2C bus, say yes to this option.
This driver can also be built as a module. If so, the module
will be called i2c-pxa.

source code: