From: Ian Kelling <ian@iankelling.org>
Date: Fri, 26 Aug 2016 09:27:19 +0000 (-0700)
Subject: add uhci_hcd bug to README.md
X-Git-Url: https://iankelling.org/git/?p=evhz;a=commitdiff_plain;h=5f6cab7491cf38e458bd5a01fb6ca54940db01e1

add uhci_hcd bug to README.md
---

diff --git a/.gitignore b/.gitignore
index 0331bbb..f437932 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,5 @@
 *.exe
 *.out
 *.app
+
+/evhz
diff --git a/README.md b/README.md
index 40dbeeb..780a9ad 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,11 @@ The program is just evhz.c. Compile and run:
 
 Nonverbose mode = -n
 
+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.