1 files changed, 3 insertions, 1 deletions
diff --git a/tests/kmstest.py b/tests/kmstest.py
index ac95456..0d9a6f8 100755
--- a/tests/kmstest.py
+++ b/tests/kmstest.py
@@ -387,7 +387,7 @@ class KMSTest(object):
         else:
             return req.commit(0, True)
 
-    def atomic_plane_set(self, plane, crtc, source, destination, fb, sync=False):
+    def atomic_plane_set(self, plane, crtc, source, destination, fb, alpha=None, sync=False):
         req = AtomicRequest(self)
         req.add(plane, {
                     'FB_ID': fb.id,
@@ -401,6 +401,8 @@ class KMSTest(object):
                     'CRTC_W': destination.width,
                     'CRTC_H': destination.height,
         })
+        if alpha is not None:
+            req.add(plane, 'alpha', alpha)
         if sync:
             return req.commit_sync()
         else: