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circuits_gpio

2.0.0-pre.4
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Use GPIOs in Elixir

Retired package: Release invalid - Use v2.0.0 or later
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circuits_gpio lib gpio nil_backend.ex
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lib/gpio/nil_backend.ex 

# SPDX-FileCopyrightText: 2023 Frank Hunleth

#

# SPDX-License-Identifier: Apache-2.0



defmodule Circuits.GPIO.NilBackend do

  @moduledoc """

  Circuits.GPIO backend when nothing else is available

  """

  @behaviour Circuits.GPIO.Backend



  alias Circuits.GPIO.Backend



  @impl Backend

  def enumerate() do

    []

  end



  @impl Backend

  def line_info(_gpio_spec, _options) do

    {:error, :not_found}

  end



  @impl Backend

  def open(_gpio_spec, _direction, _options) do

    {:error, :unimplemented}

  end



  @impl Backend

  def info() do

    %{name: __MODULE__}

  end

end