NV Tegra Embedded Controller SMBus Interface

modulename: nvec.ko

configname: CONFIG_MFD_NVEC

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>I2C support
└─>GPIO Support
└─>NV Tegra Embedded Controller SMBus Interface
In linux kernel since version 3 (release Date: 2011-07-21)  
Say Y here to enable support for a nVidia compliant embedded
controller.

source code:
drivers/staging/nvec/nvec.c
selects

CONFIG_MFD_CORE