From 388fb0d2e4cdd54041f01fe25e6fb2b33e5b740e Mon Sep 17 00:00:00 2001
From: Jon Carstens <jjcarstens@me.com>
Date: Thu, 3 Dec 2020 10:57:54 -0700
Subject: [PATCH] add @impl to DeviceChannel

---
 lib/nerves_hub_link/device_channel.ex | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/nerves_hub_link/device_channel.ex b/lib/nerves_hub_link/device_channel.ex
index d2f9918..73e3d7d 100644
--- a/lib/nerves_hub_link/device_channel.ex
+++ b/lib/nerves_hub_link/device_channel.ex
@@ -39,15 +39,18 @@ defmodule NervesHubLink.DeviceChannel do
     GenServer.call(__MODULE__, :connected?)
   end
 
+  @impl GenServer
   def init(opts) do
     send(self(), :join)
     {:ok, struct(State, opts)}
   end
 
+  @impl GenServer
   def handle_call(:connected?, _from, %{connected?: connected?} = state) do
     {:reply, connected?, state}
   end
 
+  @impl GenServer
   def handle_cast({:send_update_progress, progress}, state) do
     Channel.push_async(state.channel, "fwup_progress", %{value: progress})
     {:noreply, state}
@@ -58,6 +61,7 @@ defmodule NervesHubLink.DeviceChannel do
     {:noreply, state}
   end
 
+  @impl GenServer
   def handle_info(%Message{event: "reboot"}, state) do
     Logger.warn("Reboot Request from NervesHubLink")
     Channel.push_async(state.channel, "rebooting", %{})
@@ -98,6 +102,7 @@ defmodule NervesHubLink.DeviceChannel do
     {:noreply, state}
   end
 
+  @impl GenServer
   def terminate(_reason, _state), do: NervesHubLink.Connection.disconnected()
 
   defp handle_join_reply(%{"firmware_url" => _url} = update) do