APM emulation for class batteries

modulename: apm_power.ko

configname: CONFIG_APM_POWER

Linux Kernel Configuration
└─>Device Drivers
└─>Power supply class support
└─>APM emulation for class batteries
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
Say Y here to enable support APM status emulation using
battery class devices.

source code:
drivers/power/supply/apm_power.c