Analog Devices AD5398/AD5821 regulators

modulename: ad5398.ko

configname: CONFIG_REGULATOR_AD5398

Linux Kernel Configuration
└─>Device Drivers
└─>Voltage and Current Regulator Support
└─>Analog Devices AD5398/AD5821 regulators
In linux kernel since version 2.6.36 (release Date: 2010-10-20)  
This driver supports AD5398 and AD5821 current regulator chips.
If building into module, its name is ad5398.ko.

source code: