From 3c09577ed02e407b454e1b96de580072ee11647c Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Tue, 29 Mar 2016 14:39:55 +0800
Subject: [PATCH] device/thorlabs_tcube: fix port read

---
 artiq/devices/thorlabs_tcube/driver.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/artiq/devices/thorlabs_tcube/driver.py b/artiq/devices/thorlabs_tcube/driver.py
index 061741a23..545887e18 100644
--- a/artiq/devices/thorlabs_tcube/driver.py
+++ b/artiq/devices/thorlabs_tcube/driver.py
@@ -193,12 +193,12 @@ class _Tcube:
         await self.port.write(message.pack())
 
     async def recv(self):
-        header = await self.port.read(6)
+        header = await self.port.read_exactly(6)
         logger.debug("received header: %s", header)
         data = b""
         if header[4] & 0x80:
             (length, ) = st.unpack("<H", header[2:4])
-            data = await self.port.read(length)
+            data = await self.port.read_exactly(length)
         r = Message.unpack(header + data)
         logger.debug("receiving: %s", r)
         return r