First of all, here&#39;s the userland question: [Disabling mouse acceleration in Mac OS X @ superuser][1] 

To summarize: I want to have *linear mouse response* on Mac OS X. That is, no acceleration; an *adjustable* but *constant* `pixels pointer moves / meters mouse moved` ratio.

I have no idea how to go about this. (Well, not true, but it&#39;s better to start from scratch.) Should I write a mouse driver? A startup program? A click-and-forget settings adjuster? A preferences pane?

I want my solution to be as simple, universal and unintrusive as possible, so some criteria might be:

 - Works on Snow Leopard (10.6.5) and later - much later, unless an important piece of the API gets deprecated
 - Works on mice but not touchpads, tablets, magic wands... (Or maybe configurable?)
 - Can easily be applied/run by other people who want the same thing (all 42 of us on the planet)

I&#39;m a fairly experienced C programmer, both in user and kernel space (in Linux and Windows), but know next to nothing about Mac OS X or Darwin. So anything is appreciated, really (&quot;can&#39;t distribute drivers without certificate from Apple&quot;) but some documentation/reference would get me a long way (&quot;Darwin&#39;s Next Generation Mouse Curve Editing API and Examples&quot;).

I know the question is a bit open but I don&#39;t even know what *kind* of a solution could work. Thanks in advance.

Edit: Although I&#39;ve asked both questions to solve the same problem, this is the programmatical counterpart to the other one. (See the first sentence of this question.) Here I&#39;m trying to create my own solution, so to speak, using - I don&#39;t know - some HID API? A driver? A solution on the lines of &quot;open current user&#39;s prefs file and change this setting to this&quot; should probably be posted on the other question, but note that such a solution probably doesn&#39;t exist.

  [1]: https://superuser.com/questions/218314/disabling-mouse-acceleration-in-mac-os-x

All Hid Solutions on Gang of Coders

Total of 1 Hid Solutions

Disabling mouse acceleration in Mac OS X