NEC VR4100 series General-purpose I/O Unit support

modulename: vr41xx_giu.ko

configname: CONFIG_GPIO_VR41XX

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>NEC VR4100 series General-purpose I/O Unit support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
source code:
drivers/char/vr41xx_giu.c