debug

src/device/input/button/button.go

@@ -1,6 +1,12 @@
 package button
 
+import "fmt"
+
 type Button struct {
 	Char byte
 	Down bool
 }
+
+func (button Button) String() string {
+	return fmt.Sprintf("%c:%v", button.Char, button.Down)
+}