Silicon Laboratories 4761/64/68 AM/FM radio.

modulename: si476x-core.ko

configname: CONFIG_MFD_SI476X_CORE

Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>Silicon Laboratories 4761/64/68 AM/FM radio.
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This is the core driver for the SI476x series of AM/FM
radio. This MFD driver connects the radio-si476x V4L2 module
and the si476x audio codec.

To compile this driver as a module, choose M here: the
module will be called si476x-core.

source code: