From 2616e1928d9f9629010dd36db8a6e0accc28bab9 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Sun, 13 Feb 2022 12:47:53 +0800
Subject: [PATCH] ttl: fix type error

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

diff --git a/artiq/coredevice/ttl.py b/artiq/coredevice/ttl.py
index 9143dc7c9..b7cf4fe99 100644
--- a/artiq/coredevice/ttl.py
+++ b/artiq/coredevice/ttl.py
@@ -447,7 +447,7 @@ class TTLInOut:
         rtio_output(self.target_sens, 0)
         success = True
         try:
-            while rtio_input_timestamp(now_mu() + int64(self.gate_latency_mu), self.channel) != -1:
+            while rtio_input_timestamp(now_mu() + int64(self.gate_latency_mu), self.channel) != int64(-1):
                 success = False
         except RTIOOverflow:
             success = False