MCP4902, MCP4912, MCP4922 DAC driver

modulename: mcp4922.ko

configname: CONFIG_MCP4922

Linux Kernel Configuration
└─>Device Drivers
└─>Industrial I/O support
└─>Digital to analog converters
└─>SPI support
└─>MCP4902, MCP4912, MCP4922 DAC driver
In linux kernel since version 3.17 (release Date: 2014-10-05)  
Say yes here to build the driver for the Microchip MCP4902
MCP4912, and MCP4922 DAC devices.

To compile this driver as a module, choose M here: the module
will be called mcp4922.

source code: