Integrating Ambient Light Sensors With Windows 7 Computers: New Opportunities and Considerations for Interfacing Ambient Light Sensors With Windows

This paper provides information about new Ambient Light Sensor (ALS) features in the Windows 7 family of operating systems. It provides guidelines for hardware manufacturers and Original Equipment Manufacturers (OEMs) to integrate ALS hardware with computers that use the adaptive brightness feature and with applications that use light sensor data. Currently, integrating and supporting ALSs for automatic brightness control in Windows are difficult and costly because of the required implementation of multiple components and drivers. Additionally, these ALSs are limited in scope to brightness control functionality.