Implementation of Kernel Mode Battery Management and Camera Driver

Abstract

In world of mobility one of the most important component in Tablet or mobile Devices is rechargeable battery, which is expected to have lowest possible battery charging time, battery life should be high and provide reliable working time span. In past there are many cases of blowing or burning of battery due to over charged or overheating so it also required that battery charging system decreases those risks. This thesis focuses on efficient battery charging control system for Li-ion rechargeable battery specifically design for windows based devices. This report introduces software solution of controlling charging over hardware. Which requires minimum hardware like for coulomb counter, ADC, current-voltage regulators etc. This thesis also explains working of fuel gauge, how it used to measure state of charge, remaining capacity. It explains how charging source detection is done on hardware as per Battery specification 1.2 standard. This thesis also covers functional flow of camera sensor driver and requirement of camera sensor driver.Camera sensor driver implements common control functionality which expected by Image signal Processor (ISP) driver for specific sensor included in this report.