2.6: Synaptics TouchPad and GPM (GPM patches)

2.6: Synaptics TouchPad and GPM (GPM patches)

[Dmitry Torokhov]

Hi,

Apologies for the semi-offtopic message but ever since support for 
Synaptics' absolute mode went in many people complained that it 
broke GPM. 

I did some work on extending evdev support in GPM, the new protocol
implementation supports following subtypes:

1. relative device - standard relative device like generic PS/2 mouse
   reporting via /dev/input/eventX
2. absolute device - touch screens and tablets.
3. touchpad - device reporting absolute coordinates and pressure via
   /dev/input/event, GPM recognizes normal and corner tapping.
4. synaptics - same as touchpad but also supports multi-finger taps
   (expects MSC_GESTURE messages from the kernel).

Kernel has to support EV_SYNC for touchpad and synaptics support, 
relative and absolute modes can be used with 2.4 kernels by specifying
nosync option.
 
You will find the patches at:
http://www.geocities.com/dt_or/gpm/patches/

RPMs (binary and source) built on RH8 are at:
http://www.geocities.com/dt_or/gpm/RPMS/

The README is at:
http://www.geocities.com/dt_or/gpm/gpm.html

The patches work pretty well for me and I hope they will work for others too.
Because of limited hardware I could not test evdev with touchscreen or a 
tablet.

Dmitry.

Re: 2.6: Synaptics TouchPad and GPM (GPM patches)

[Joshua Kwan]

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On Fri, Aug 22, 2003 at 09:46:56PM -0500, Dmitry Torokhov wrote:
> You will find the patches at:
> http://www.geocities.com/dt_or/gpm/patches/

Could you put a cumulative patch up as well?

Thanks,

-- 
Joshua Kwan

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Re: 2.6: Synaptics TouchPad and GPM (GPM patches)

[Vojtech Pavlik]

On Fri, Aug 22, 2003 at 09:46:56PM -0500, Dmitry Torokhov wrote:
> Hi,
> 
> Apologies for the semi-offtopic message but ever since support for 
> Synaptics' absolute mode went in many people complained that it 
> broke GPM. 
> 
> I did some work on extending evdev support in GPM, the new protocol
> implementation supports following subtypes:
> 
> 1. relative device - standard relative device like generic PS/2 mouse
>    reporting via /dev/input/eventX
> 2. absolute device - touch screens and tablets.
> 3. touchpad - device reporting absolute coordinates and pressure via
>    /dev/input/event, GPM recognizes normal and corner tapping.
> 4. synaptics - same as touchpad but also supports multi-finger taps
>    (expects MSC_GESTURE messages from the kernel).
> 
> Kernel has to support EV_SYNC for touchpad and synaptics support, 
> relative and absolute modes can be used with 2.4 kernels by specifying
> nosync option.

You should not need any options for this - it's all queryable via ioctls ...

> You will find the patches at:
> http://www.geocities.com/dt_or/gpm/patches/
> 
> RPMs (binary and source) built on RH8 are at:
> http://www.geocities.com/dt_or/gpm/RPMS/
> 
> The README is at:
> http://www.geocities.com/dt_or/gpm/gpm.html
> 
> The patches work pretty well for me and I hope they will work for others too.
> Because of limited hardware I could not test evdev with touchscreen or a 
> tablet.
> 
> Dmitry.
> -
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-- 
Vojtech Pavlik
SuSE Labs, SuSE CR

Re: 2.6: Synaptics TouchPad and GPM (GPM patches)

[Dmitry Torokhov]

On Tuesday 26 August 2003 02:45 am, Vojtech Pavlik wrote:
> On Fri, Aug 22, 2003 at 09:46:56PM -0500, Dmitry Torokhov wrote:
> >
> > Kernel has to support EV_SYNC for touchpad and synaptics support,
> > relative and absolute modes can be used with 2.4 kernels by specifying
> > nosync option.
>
> You should not need any options for this - it's all queryable via ioctls
> ...

Done, along with implementing new type "auto" which selects best mode for 
the device.

Dmitry

Re: 2.6: Synaptics TouchPad and GPM (GPM patches)

[Vojtech Pavlik]

On Wed, Aug 27, 2003 at 02:10:14AM -0500, Dmitry Torokhov wrote:

> On Tuesday 26 August 2003 02:45 am, Vojtech Pavlik wrote:
> > On Fri, Aug 22, 2003 at 09:46:56PM -0500, Dmitry Torokhov wrote:
> > >
> > > Kernel has to support EV_SYNC for touchpad and synaptics support,
> > > relative and absolute modes can be used with 2.4 kernels by specifying
> > > nosync option.
> >
> > You should not need any options for this - it's all queryable via ioctls
> > ...
> 
> Done, along with implementing new type "auto" which selects best mode for 
> the device.

Cool.

You could even make it search for all mouse-like input devices ...

-- 
Vojtech Pavlik
SuSE Labs, SuSE CR