From ef4710c6e0fda3e1939dfd5f1bd5011531ae6630 Mon Sep 17 00:00:00 2001
From: Kevin O'Connor <kevin@koconnor.net>
Date: Fri, 24 Jan 2020 00:01:48 -0500
Subject: [PATCH] hd44780: Increase timeout to 40us

There have been several reports that increasing the delay from 37us to
40us eliminates screen corruption on some clone hd44780 displays.
Increase the timeout value so that the standard code works on these
displays.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
---
 klippy/extras/display/hd44780.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/klippy/extras/display/hd44780.py b/klippy/extras/display/hd44780.py
index 77fd3b40..1a766654 100644
--- a/klippy/extras/display/hd44780.py
+++ b/klippy/extras/display/hd44780.py
@@ -8,7 +8,7 @@ import logging
 
 BACKGROUND_PRIORITY_CLOCK = 0x7fffffff00000000
 
-HD44780_DELAY = .000037
+HD44780_DELAY = .000040
 
 class HD44780:
     def __init__(self, config):