Logitech g hub mouse acceleration11/14/2023 ![]() The main disadvantage of disabling mouse acceleration is that it can make some mouse activities more difficult. This is especially useful for gamers who need to make quick and accurate movements while playing a game. By not having the acceleration enabled, the user can make small and precise movements much easier. But DriverKit doesn't allow CoreFoundation or stdlib so it's taking some time.The main advantage of disabling mouse acceleration is that it allows the user to have more control over their mouse movements. This leaves me with the only option to write a driver and copy over the IOHIDPointerScrollFilter code. This line in the HIDServiceFilterExample.m gives me some hope, but I don't think HIDServiceFilterExample is the same base that is being used by the IOHIDPointerScrollFilter. The whitelist might be defined in IOHIDSystem::createParameters If you could do this, then we would have full control over pointer acceleration from a single CLI command. However, it seems there is a whitelist of properties that are allowed to be set, and HIDPointerAccelerationTable is not one of them. You can see here where IOHIDPointerScrollFilter will run its acceleration setup on response to a property change. ![]() However, it will not report when it fails to set a property, and these settings don't seem to update the System Preferences UI. This is how you would disable acceleration. Normally, you can set properties for HID devices like so (this is matching my IntelliMouse): hidutil property -matching '' IntelliMouse used to use IOHIPointing but this is now deprecated. The IntelliMouse curve was defined in the ist as a simple binary protocol under the key HIDPointerAccelerationTable. The parametric way seems like an improvement on the table, allowing for a smoother acceleration curve, rather than defining a jagged curve based on a few xy coords. The algorithm can be created with an IOHIDTableAcceleration (which is how IntelliPoint encoded their accel curve), or with IOHIDParametricAcceleration. WindowServer: (IOKit) Add filter:IOHIDServiceFilter uuid:25268D26-BB27-4522-AEBC-02B6A6B920AC name.IOHIDPointerScrollFilter for service:0x1000df3e6Īn IOHIDPointerAccelerator is created which takes an algorithm as input. $ sudo log stream -level debug -predicate 'subsystem = ""' The instantiation point of this "filter" is not open-source AFAICT. It is implemented as a CFPlugin, and roughly implements the IOHIDServiceFilter.h interface. MacOS pointer acceleration is performed here in IOHIDPointerScrollFilter.cpp. I am in the process of writing a DriverKit driver for the mouse. The driver is only compiled for Intel so doesn't work on new MacBooks. I have become accustomed to the Microsoft IntelliMouse acceleration curve. and here's the programmatical variant, as I'll be trying to roll my own solution: Disabling mouse acceleration in Mac OS X SO Before 10.4, there was a function to which you could pass your own acceleration curve which solved everything.īy the way, here is the Linux counterpart to this question: Disabling mouse acceleration in X.Org (Linux)
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |