Support Wolfson Microelectronics WM831x/2x PMICs

modulename: wm831x.ko

configname: CONFIG_MFD_WM831X

Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>I2C support
└─>Support Wolfson Microelectronics WM831x/2x PMICs
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
Support for the Wolfson Microelecronics WM831x and WM832x PMICs.
This driver provides common support for accessing the device,
additional drivers must be enabled in order to use the
functionality of the device.

source code: