From 8612a8a9ca1ce410520c2022c74dfd641821c990 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Mon, 6 Oct 2014 17:23:00 +0800
Subject: [PATCH] devices/dds_core: remove stale kernel_attr

---
 artiq/devices/dds_core.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/artiq/devices/dds_core.py b/artiq/devices/dds_core.py
index ad247e86c..c0dbd1fcf 100644
--- a/artiq/devices/dds_core.py
+++ b/artiq/devices/dds_core.py
@@ -23,7 +23,7 @@ class DDS(AutoContext):
         self.previous_frequency = 0*MHz
         self.sw = rtio_core.RTIOOut(self, channel=self.rtio_channel)
 
-    kernel_attr = "previous_frequency previous_timestamp"
+    kernel_attr = "previous_frequency"
 
     @kernel
     def on(self, frequency):