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

> 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 ?

Best Regards,

Luís Ferreira
E2AB 2BF8 F3EC ABE2 E149 F2FD BC43 0831 9CE4 0B64 (plain text)

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On Wed, 3 Apr 2019 at 10:10, Hans de Goede <> wrote:
> Hi,
> On 02-04-19 18:04, Luís 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:
> 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. :
> 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: Luís Ferreira <>
> > ---
> > 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},
> >

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