NatSemi Base GPIO Support

modulename: nsc_gpio.ko

configname: CONFIG_NSC_GPIO

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>NatSemi Base GPIO Support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Common support used (and needed) by scx200_gpio and
pc8736x_gpio drivers. If those drivers are built as
modules, this one will be too, named nsc_gpio

source code: