X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=README.md;h=6707c4531e428946589172984b9eb70f719e237b;hb=3b656489b70838afaeb33359cb0086e2a184c81f;hp=40dbeeb4bc9406889ad018b3f14506e5ae4c6eaf;hpb=0f170f03acdbf0ee30717347ddb621ac69bc2a3f;p=evhz

diff --git a/README.md b/README.md
index 40dbeeb..6707c45 100644
--- a/README.md
+++ b/README.md
@@ -1,19 +1,20 @@
 # evhz
 
-Display the current mouse refresh rate under linux with evdev
+Show mouse refresh rate under linux + evdev
 
 For information about polling rate, see https://wiki.archlinux.org/index.php/Mouse_Polling_Rate
 
-The program is just evhz.c. Compile and run:
+Just do ./run (run is very short and readable).
 
-    gcc -o evhz evhz.c
-    sudo ./evhz
+Nonverbose mode = -n, but you probably don't want that.
 
-Nonverbose mode = -n
+Reported average is for the last 64 samples, or as many as we have so far.
+
+There exists a kernel bug for USB ports which use the uhci_hcd driver,
+where a 1000 hz mouse will only read at 500hz, causing jittering:
+https://bugzilla.kernel.org/show_bug.cgi?id=60586. A workaround is to
+use USB ports that use the ehci-pci driver.
 
 Maintainer: Ian Kelling <ian@iankelling.org>
 
 Bugs, patches, requests, feedback are welcome.
-
-Last tested 7/2016 on Debian testing. Still working great after several
-years.