i8042: add I8042Device::reset_evt() method

Make the I8042Device implementation more symmetric with other devices
by allowing the user to get a reference to the underlying trigger
descriptor.

Signed-off-by: Carlos López <[email protected]>

Author: 00xc

vm-superio/CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+# Upcoming version
+
+## Changed
+
+- Added a `reset_evt` to the `I8042Device` type to retrieve the underlying
+  reset event object.
+
 # v0.7.0
 
 ## Changed

vm-superio/src/i8042.rs

@@ -86,6 +86,11 @@ impl<T: Trigger> I8042Device<T> {
         I8042Device { reset_evt }
     }
 
+    /// Provides a reference to the reset event object.
+    pub fn reset_evt(&self) -> &T {
+        &self.reset_evt
+    }
+
     /// Handles a read request from the driver at `_offset` offset from the
     /// base I/O address.
     ///