~iank/evhz

Show mouse refresh rate under linux + evdev
improve license notice
supposedly handle >1000hz
Increase event max, someone has event257

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#evhz

Show mouse refresh rate under linux + evdev

For information about polling rate, see https://wiki.archlinux.org/index.php/Mouse_Polling_Rate

Just do ./run (run is very short and readable).

Nonverbose mode = -n, but you probably don't want that.

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.

#license

I, Ian Kelling, follow the GNU license recommendations at https://www.gnu.org/licenses/license-recommendations.en.html. They recommend that small programs, < 300 lines, be licensed under the Apache License 2.0. This file contains or is part of one or more small programs.

Copyright 2024 Ian Kelling

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.