[OE-core] [PATCH 4/4] pointercal-xinput: add a dummy calibration file for qemu

[Maxin B. John]

Hi,

On Thu, Jun 16, 2016 at 09:43:40AM +0100, Richard Purdie wrote:
> On Thu, 2016-06-16 at 11:05 +0300, Maxin B. John wrote:
> > Hi RP,
> > 
> > On Wed, Jun 15, 2016 at 05:58:18PM +0100, Richard Purdie wrote:
> > > On Wed, 2016-06-15 at 16:13 +0300, Maxin B. John wrote:
> > > > In qemu, the emulated PS/2 mouse reports itself as an "absolute
> > > > coordinate"
> > > > device and that makes xinput_calibrator think it could be
> > > > calibrated.
> > > > 
> > > > Add a dummy calibration file as a work around to prevent
> > > > xinput_calibrator from
> > > > popping up on every boot in qemu.
> > > > 
> > > > [YOCTO #8380]
> > > > 
> > > > Signed-off-by: Maxin B. John <maxin.john at intel.com>
> > > > Signed-off-by: Jussi Kukkonen <jussi.kukkonen at intel.com>
> > > 
> > > This doesn't sound right. In qemu, we add a usb touchpad which
> > > allows
> > > absolute coordinate entry, which means qemu doesn't have to grab
> > > the
> > > mouse.
> > > 
> > > Are there two devices? A mouse shouldn't be seen as an absolute
> > > coordinate device.
> > 
> > Yes, both qemu monitor and xinput_calibrator in target shows two
> > devices:
> > 
> > (qemu) info mice
> >   Mouse #2: QEMU PS/2 Mouse
> >   * Mouse #3: QEMU HID Tablet (absolute)
> > 
> > #  xinput_calibrator --list
> >  Device "QEMU QEMU USB Tablet" id=8
> >  Device "ImExPS/2 Generic Explorer Mouse" id=9
> 
> So with these patches, are we still calibrating the tablet input?

We won't be calibrating tablet input in qemu targets.This patch is supposed
to be a work-around to avoid mouse input calibration only in qemu targets.

> pointercal ships default calibrations for that under the current setup
> but those likely aren't compatible with xinput and we'd need the same
> thing but for xinput here?

Yes, the default values shipped by pointercal aren't compatible with xinput.

> Cheers,
> Richard

Best Regards,
Maxin