HTC EGPIO support

modulename: gpio-htc-egpio.ko

and/or

htc-egpio.ko

configname: CONFIG_HTC_EGPIO

Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>GPIO Support
└─>HTC EGPIO support
In linux kernel since version 2.6.26 (release Date: 2008-07-13)  
This driver supports the CPLD egpio chip present on
several HTC phones. It provides basic support for input
pins, output pins, and irqs.

source code:
drivers/mfd//htc-egpio.c