diff --git a/src/usb.rs b/src/usb.rs
index af08fda..885520d 100644
--- a/src/usb.rs
+++ b/src/usb.rs
@@ -78,7 +78,7 @@ pub trait Interface<'a> {
 }
 
 /// An error from a USB interface
-#[derive(Error, Debug)]
+#[derive(Error, Debug, PartialEq, Eq, PartialOrd, Ord)]
 pub enum UsbError {
     #[error("device not found")]
     DeviceNotFound,