WIP: usb touchscreen drivers

[Zane C.B.]

On Tue, 10 Jun 2008 20:12:18 +0200
Volker <volker at vwsoft.com> wrote:

> Hi everybody!
> 
> I'm taking the chance and cross-posting this to the exciting,
> hopefully soon becoming busy, shiny new mailing list
> (freebsd-wip-status@ bcc'd, for those not already aware).
> 
> Currently I'm working under contract for developing FreeBSD drivers
> for USB touchscreen devices. Before coding started, I've figured
> out the possible solutions to get a touchscreen device running
> under FreeBSD / X11 but haven't found much. We currently don't have
> any specialized drivers (but ums and uhid).
> 
> More than worse: By default the ums driver is attaching to the
> device by default which has no support for devices reporting zero
> buttons and absolute coordinates. Currently OpenBSD has support for
> touchscreen devices but I found it difficult (or at least too much
> work) to port over wscons and replace syscons with that. Current
> touchscreen xf86-input drivers do partly support USB devices under
> Linux and I don't like to have the Xinput driver parse the USB
> protocol itself. Using a specialized kernel driver has some
> advantages IMO.
> 
> Currently I'm having a basic, working driver (hence: WIP!), at
> kernel level (utouch) and a corresponding xf86-input-utouch driver.
> The first device supported is a Generaltouch ST6101U. So far, the
> device is working, the X pointer is following touches and button
> clicks are reported to X. Axis scaling is currently sub-optimal but
> I think I'll rework the scaling once more.
> 
> What I would love to see: If you're having a USB connected
> touchscreen device laying around, I would love to see a krepdump
> [1] of that device to see how other devices are reporting.
> Especially, if you're having a multi-touch device, I would strongly
> love to see how this device reports data!
> 
> BTW, it shouldn't be too difficult to enhance my driver
> infrastructure to also support tablet devices (also reporting
> absolute coordinates but also reporting button presses and some
> more functionality).
> 
> As this work is under contract, I need to get approval to release
> the code but I'm pretty sure to get approval (BSD-licensed, of
> course). If you're interested in seeing USB touchscreen support for
> FreeBSD this way and have a device laying around, please contact me
> directly and I'll see how to support your device.

This ever go any where?
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