S3C2440 based on linux and the GPIO driver also contains examples of applications that can access any individual IO pin, set to input and output, etc.

Packet : 87361008gpio.rar filelist
gpio
gpio\gpio_driv.c
gpio\Makefile
gpio\shutdown.c
gpio\gprspower.c
gpio\gpiotest.c
gpio\lcdpower.c
gpio\gprsaudio.c

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