libgpiod: libgpiod (C library & tools for interacting with the Linux GPIO char
libgpiod: device)
libgpiod: 
libgpiod: libgpiod is a C library and tools for interacting with the linux
libgpiod: GPIO character device (gpiod stands for GPIO device).  The new
libgpiod: character device interface guarantees all allocated resources are
libgpiod: freed after closing the device file descriptor and adds several new
libgpiod: features that are not present in the obsolete sysfs interface
libgpiod: (such as event polling, setting/reading multiple values at once or 
libgpiod: open-source and open-drain GPIOs).
libgpiod: