Re: [rfc/rft] Fujitsu B-Series Lifebook PS/2 TouchScreen driver

From: Vojtech Pavlik (
Date: 02/13/05

  • Next message: Vojtech Pavlik: "Re: [rfc/rft] Fujitsu B-Series Lifebook PS/2 TouchScreen driver"
    Date:	Sun, 13 Feb 2005 12:46:58 +0100
    To: Kenan Esau <>

    On Sun, Feb 13, 2005 at 10:39:46AM +0100, Kenan Esau wrote:
    > Am Samstag, den 12.02.2005, 12:46 -0500 schrieb Arjan van de Ven:
    > > On Sat, 2005-02-12 at 18:01 +0100, Kenan Esau wrote:
    > >
    > > > Second thing is that I am not shure that it is a good idea to integrate
    > > > the lbtouch-support into the psmouse-driver since there is no real way
    > > > of deciding if the device you are talking to is REALLY a
    > > > lifebook-touchsreen or not.
    > > ...
    > > > IMHO the driver should be standalone and the user should decide which
    > > > driver he wants to use. As default the touchscreen-functionality will be
    > > > disabled and only the quick-point device will work like a normal
    > > > PS2-mouse.
    > >
    > > I just want to point out that this is a problem for distributions and
    > > for not-so-technical users.
    > >
    > > Is there *really* no way to know if you're on a lifebook? Can't you use
    > > say the DMI identification mechanism to find this out ? If so, I think
    > > integrating into the regular driver very much is the right thing to
    > > do... it makes things JustWork(tm) for users without any need for manual
    > > configuration (which also makes distribution makers happy).
    > Yes that would be nice. But the lifebook-touchscreen hardware is also
    > used in other notebooks. For example the Panasonic Toughbook CF28. But
    > we could still use DMI to check whether we are on a lifebook b-series
    > and then initialize the hardware. This would still get 95% of all cases.
    > For all the other ones we would have to provide some kind of
    > force-switch.
    Or simply another entry in the DMI table for the Toughbook, and for the
    few others who use this kind of touchscreen controller.

    Vojtech Pavlik
    SuSE Labs, SuSE CR
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