Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO

modulename: gpio-sch.ko

configname: CONFIG_GPIO_SCH

Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>Port-mapped I/O GPIO drivers
└─>Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO
In linux kernel since version 2.6.34 (release Date: 2010-05-16)  
Say yes here to support GPIO interface on Intel Poulsbo SCH,
Intel Tunnel Creek processor, Intel Centerton processor or
Intel Quark X1000 SoC.

The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
powered by the core power rail and are turned off during sleep
modes (S3 and higher). The remaining four GPIOs are powered by
the Intel SCH suspend power supply. These GPIOs remain
active during S3. The suspend-powered GPIOs can be used to wake the
system from the Suspend-to-RAM state.

The Intel Tunnel Creek processor has 5 GPIOs powered by the
core power rail and 9 from suspend power supply.

The Intel Centerton processor has a total of 30 GPIO pins.
Twenty-one are powered by the core power rail and 9 from the
suspend power supply.

The Intel Quark X1000 SoC has 2 GPIOs powered by the core
power well and 6 from the suspend power well.

source code:
drivers/gpio/gpio-sch.c