Description: this a wince driver, the function is set gpio input, you can test it, i think it can help you.
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File list (Check if you may need any files):
GPIOI\Build.log
.....\Build.wrn
.....\GPIO.def
.....\GPIOI.c
.....\GPIOI.c.bak
.....\makefile
.....\obj\ARMV4I\debug\GPIN.def
.....\...\......\.....\GPIOI.obj
.....\...\......\.....\_objects.mac
.....\...\......\retail\GPIN.def
.....\...\......\......\GPIOI.obj
.....\...\......\......\_objects.mac
.....\sources
.....\obj\ARMV4I\debug
.....\...\......\retail
.....\...\ARMV4I
.....\obj
GPIOI