View Source Circuits.GPIO.CDev (circuits_gpio v2.1.2)

Circuits.GPIO backend that uses the Linux CDev for controlling GPIOs

This is the default on Linux and Nerves. Nothing needs to be done to use it on those platforms. If you need to be explicit, here's the configuration to force it:

config :circuits_gpio, default_backend: Circuits.GPIO.CDev

It takes one option, :test, that can be set to true to compile the stub implementation that can be useful for testing.

config :circuits_gpio, default_backend: {Circuits.GPIO.CDev, test: true}