I test gpio-utils on a Raspberry PI 3. It's Ok for `read/write` command but I can't use the `poll` command. I do this > gpio --config ./raspberrypi.toml poll GPIO07 I got this error > Error setting edge on pin: Io(Error { repr: Os { code: 5, message: "Input/output error" } }) And if I do > gpio --config ./raspberrypi.toml poll GPIO07 both I got this > error: Found argument 'both' which wasn't expected, or isn't valid in this context