Re: [PATCH] iio: accel: add missing sensor for some 2-in-1 based ultrabooks

[Hans de Goede]

Hi,

On 06-04-19 01:01, LuÃs Ferreira wrote:
> Hi,
>
> > Basically we need to come up with a convention to (optionally) indicate
> > the sensors location with a udev attribute set by:
> > /lib/udev/hwdb.d/60-sensor.hwdb
>
> So should we start adding `ACCEL_LOCATION=display` and
> `ACCEL_LOCATION=keyboard` attributes to that file and patch
> iio-sensor-proxy to ignore the keyboard ones as a first step ?

Yes that seems the best way forward with this.

Note I think "base" is better then "keyboard" for the sensor which
is in the base/keyboard. But neither is perfect, so go which whatever
you prefer.

Thanks & Regards,

Hans



> On Wed, 3 Apr 2019 at 10:10, Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
> > Hi,
> >
> > On 02-04-19 18:04, LuÃs Ferreira wrote:
> > > Some ultrabooks, like Teclast F6 Pro, use KIOX010A sensor on display
> > > and KIOX020A sensor on keyboard base, to detect tablet mode or screen
> > > orientation.
> >
> > I deliberately left out the KIOX020A id for now, because currently
> > userspace cannot really deal with having 2 sensors.
> >
> > See:
> > https://github.com/systemd/systemd/issues/6557
> > https://github.com/hadess/iio-sensor-proxy/issues/166
> >
> > Basically we need to come up with a convention to (optionally) indicate
> > the sensors location with a udev attribute set by:
> > /lib/udev/hwdb.d/60-sensor.hwdb
> >
> > And then patch iio-sensor-proxy to consume that attribute and ignore
> > the one which has e.g. ACCEL_LOCATION=keyboard in its udev properties
> >
> > Ignoring would be a first step, maybe later it can do something useful
> > with it, see e.g. :  https://github.com/alesguzik/linux_detect_tablet_mode
> >
> > IMHO we really should minimally get code in place for iio-sensor-proxy
> > to ignore the keyboard accelerometer before merging this patch.
> >
> > I realize that having the code in place will not magically get it on
> > all users machines, but I believe this is the minimum which needs to
> > happen before we push this out and potentially breaks people screen
> > rotation.
> >
> > I've had working on this on my TODO list for a long long time now,
> > but -ENOTIME. If you have some time to work on this then that would
> > be great.
> >
> > Regards,
> >
> > Hans
> >
> >
> >
> >
> > > Signed-off-by: LuÃs Ferreira <luis@xxxxxxxxxxxxxx>
> > > ---
> > >    drivers/iio/accel/kxcjk-1013.c | 1 +
> > >    1 file changed, 1 insertion(+)
> > >
> > > diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
> > > index 7096e577b23f..9a5e445facc1 100644
> > > --- a/drivers/iio/accel/kxcjk-1013.c
> > > +++ b/drivers/iio/accel/kxcjk-1013.c
> > > @@ -1492,6 +1492,7 @@ static const struct acpi_device_id kx_acpi_match[] = {
> > >        {"KIOX0009", KXTJ21009},
> > >        {"KIOX000A", KXCJ91008},
> > >        {"KIOX010A", KXCJ91008}, /* KXCJ91008 inside the display of a 2-in-1 */
> > > +     {"KIOX020A", KXCJ91008},
> > >        {"KXTJ1009", KXTJ21009},
> > >        {"KXJ2109",  KXTJ21009},
> > >        {"SMO8500",  KXCJ91008},