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tajudheenk/gpio-sysfs
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GPIO communication via sysfs. gpio-sysfs.* is a collection of functions which encapsulate the reading / writing and interrupt handling to/from GPIO pins of the raspberry pi. The demo program gpio-int-test waits for an interrupt for 3secs on a GPIO pin. If an interrupt has happened it prints out "interrupt" otherwise "timeout". To run it type: make sudo ./gpio-int-test 22 which waits then for an interrupt on GPIO pin 22.
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This is a bunch of c functions for the RPI to do GPIO communication and interrupts via sysfs
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