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a2gs/Raspberry Pi GPIO

Last active September 16, 2020 18:59
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Raspberry Pi GPIO
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Raspberry Pi GPIO
1) Exporting a PIN (example, 9):
echo "9" > /sys/class/gpio/export
(/sys/class/gpio/unexport to undo)
2) Setting PIN direction
echo "out" > /sys/class/gpio/gpio9/direction
3) Changing/reading PIN value:
echo "1" > /sys/class/gpio/gpio9/value
https://www.kernel.org/doc/Documentation/gpio/sysfs.txt
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a2gs commented Sep 16, 2020 •
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New GPIO Interface (Linux 5.5): gpiod

Manual: https://github.com/brgl/libgpiod
(for D language): https://libgpiod-dlang.dpldocs.info/gpiod.html

Samples: https://youtu.be/3pc5q9B8Ilo https://microhobby.com.br/blog/2020/02/02/new-linux-kernel-5-5-new-interfaces-in-gpiolib/

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