Possible to kill port

[ConnorRigby]

I'm relaying this information from slack:

alias ElixirALE.{GPIO, SPI}
{:ok, gpio} = GPIO.start_link(25, :output)
{:ok, spi} = SPI.start_link("spidev0.0", bits_per_word: 16)
received unexpected message in handle_info/2: {#Port<0.2815>, {:exit_status, 1}}

[fhunleth]

This was on a Raspberry Pi 3.

[jimsynz]

I've just started seeing this on a Pi zero also.

[fhunleth]

@jimsynz Is it possible for you to switch to https://elixir-circuits.github.io/?

[jimsynz]

@fhunleth I originally was working with Circuits but had trouble with my app never starting when Circuits.GPIO was installed. I'll raise an issue there and try and diagnose it more.