National Semiconductor LM78 and compatibles

modulename: lm78.ko

configname: CONFIG_SENSORS_LM78

Linux Kernel Configuration
└─>Device Drivers
└─>Hardware Monitoring support
└─>I2C support
└─>National Semiconductor LM78 and compatibles
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
If you say yes here you get support for National Semiconductor LM78,
LM78-J and LM79.

This driver can also be built as a module. If so, the module
will be called lm78.

source code: