Re: Generic 'input device' layer

From: Devon H. O'Dell (dodell_at_sitetronics.com)
Date: 11/12/04

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    Date: Fri, 12 Nov 2004 09:04:52 +0100
To: Philip Paeps <philip@freebsd.org>

    Philip Paeps wrote:
    > I've been spending the last few weeks writing and hacking touchscreen drivers
    > in the Linux kernel for one of my clients. Thanks to the simple 'input core'
    > framework, this was pretty easy to do. It wasn't fun, but it was easy.
    >
    > Trying to port these drivers to FreeBSD is a lot more painful than it should
    > be, and I'm finding myself duplicating heaps of code (translating absolute
    > coordinates to dx/dy motions, mapping buttons, etc).
    >
    > Has anyone else tried to write something like 'input core' for FreeBSD? A
    > quick Google doesn't turn up anything of particular interest.
    >
    > Basically, I'm looking for a way to get from hardware events to something
    > syscons will understand, without having to do all sorts of really disgusting
    > magic in sys/isa/psm.c or usr.sbin/moused/moused.c.
    >
    > If no one else is working on this, I'd like to solicit ideas for what others
    > would like this interface to look like, and I'll go and write it myself :-)
    >
    > Ideas are welcome!
    >
    > - Philip

    I've recently offered my help in the ARM area; I expect to own a Siemens
    SIMpad shortly. It also happens to be a touchscreen device. I don't have
    any idea how these things work (though I suppose it's not terribly
    difficult to understand), but keep me informed about what you're doing
    and what needs to be done. If we can get a TODO list set up for things
    that need to happen to get a working touchscreen driver, I can probably
    help take a few of those things off the list.

    --Devon

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