Subject: Re: Breaking binary compatibility for /dev/joy
To: Hubert Feyrer <>
From: Jared D. McNeill <>
List: tech-kern
Date: 04/16/2002 21:39:31
On Wed, 17 Apr 2002, Hubert Feyrer wrote:
> On Tue, 16 Apr 2002, Jared D. McNeill wrote:
> > I've added 4-button support to the analog joystick driver, but that
> > required adding two more items to struct joystick (for the two extra
> > buttons).
> Why just go to 4, not something like 16 or 32?

It's a physical limitation of the old joystick interface (4 buttons only
work if only one game pad is plugged into a controller, because it uses
the bits for the second controller's 2 buttons as its 3rd and 4th).

For more buttons, we have USB joysticks :)