HID ALS

modulename: hid-sensor-als.ko

configname: CONFIG_HID_SENSOR_ALS

Linux Kernel Configuration
└─>Device Drivers
└─>Industrial I/O support
└─>Light sensors
└─>HID ALS
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Say yes here to build support for the HID SENSOR
Ambient light sensor.

source code:
drivers/iio/light/hid-sensor-als.c