Split project (keep controller)

src/driver.rs

@@ -0,0 +1,22 @@
+use serde::{Deserialize, Deserializer};
+
+#[derive(Debug, Clone, Copy)]
+pub enum Driver {
+	Null,
+	Gpio,
+	PiFace,
+}
+
+impl<'de> Deserialize<'de> for Driver {
+	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+	where
+		D: Deserializer<'de>,
+	{
+		match String::deserialize(deserializer)?.as_str() {
+			"null" => Ok(Driver::Null),
+			"gpio" => Ok(Driver::Gpio),
+			"piface" => Ok(Driver::PiFace),
+			_ => Err(serde::de::Error::custom("invalid driver")),
+		}
+	}
+}