Re: [PATCH] HID: multitouch: add quirks for Lenovo Yoga Book 9i

From: Jiri Kosina

Date: Sat Jan 10 2026 - 04:05:22 EST


On Sat, 10 Jan 2026, Jiri Kosina wrote:

> > Add required quirks for Lenovo Yoga Book 9i Gen 8 to Gen 10 models,
> > including a new quirk providing for custom input device naming and
> > dropping erroneous InRange reports.
> >
> > The Lenovo Yoga Book 9i is a dual-screen laptop, with a single composite
> > USB device providing both touch and tablet interfaces for both screens.
> > All inputs report through a single device, differentiated solely by report
> > numbers. As there is no way for udev to differentiate the inputs based on
> > USB vendor/product ID or interface numbers, custom naming is required to
> > match against for downstream configuration. A firmware bug also results
> > in an erroneous InRange message report (with everything other than X/Y
> > as 0) being received after the stylus leaves proximity, blocking later
> > touch events.
> >
> > Signed-off-by: Brian Howard <blhoward2@xxxxxxxxx>
> > Tested-by: Brian Howard <blhoward2@xxxxxxxxx>
> > Reported-by: Andrei Shumailov <gentoo1993@xxxxxxxxx>
> > Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220386
>
> Applied, thanks.

v2 was actually applied, just the response was improperly threaded, sorry.

--
Jiri Kosina
SUSE Labs