libgpiod: libgpiod: C library and tools for interacting with the linux GPIO character libgpiod: device (gpiod stands for GPIO device) libgpiod: libgpiod: Since linux 4.8 the GPIO sysfs interface is deprecated. User space libgpiod: should use the character device instead. This library encapsulates libgpiod: the ioctl calls and data structures behind a straightforward API. libgpiod: libgpiod: libgpiod: