1 files changed, 6 insertions, 0 deletions
diff --git a/src/interrupt.rs b/src/interrupt.rs
index 4305071..035dcd4 100644
--- a/src/interrupt.rs
+++ b/src/interrupt.rs
@@ -26,6 +26,12 @@ impl<T> Mutex<T> {
     }
 }
 
+/// Interrupt number
+pub unsafe trait Nr {
+    /// Returns the number associated with this interrupt
+    fn nr(&self) -> u8;
+}
+
 // FIXME `T` should have some bound: `Send` or `Sync`?
 unsafe impl<T> Sync for Mutex<T> {}