From b96249339d0a6fa89cb5b6a893cce3cbaaa02808 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Tue, 21 Oct 2014 23:56:12 +0800
Subject: [PATCH] doc: more precisions on RTIO error handling

---
 artiq/coredevice/runtime_exceptions.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/artiq/coredevice/runtime_exceptions.py b/artiq/coredevice/runtime_exceptions.py
index 0d86bc6c9..3f98008e8 100644
--- a/artiq/coredevice/runtime_exceptions.py
+++ b/artiq/coredevice/runtime_exceptions.py
@@ -25,7 +25,8 @@ class RTIOUnderflow(RuntimeException):
 # Raised by RTIO driver for regular RTIO.
 # Raised by runtime for DDS FUD.
 class RTIOSequenceError(RuntimeException):
-    """Raised when an event was not submitted with an increasing timestamp.
+    """Raised when an event is submitted on a given channel with a timestamp
+    not larger than the previous one.
 
     The offending event is discarded and RTIO operation is not affected
     further.