Intel Langwell/Penwell GPIO support

modulename: gpio-langwell.ko

configname: CONFIG_GPIO_LANGWELL

Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>Intel Langwell/Penwell GPIO support
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
Say Y here to support Intel Langwell/Penwell GPIO.

source code:
selects
CONFIG_IRQ_DOMAIN