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authorBrian Howard <blhoward2@gmail.com>2025-12-02 21:35:47 -0500
committerJiri Kosina <jkosina@suse.com>2026-01-10 10:04:59 +0100
commit822bc5b3744b0b2c2c9678aa1d80b2cf04fdfabf (patch)
treeb71b6b09c74c56bcf7deb08bf672c5455fc346cc /tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git
parente6807641ac94e832988655a1c0e60ccc806b76dc (diff)
HID: multitouch: add quirks for Lenovo Yoga Book 9i
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 being received after the stylus leaves proximity, blocking later touch events. Add required quirks for Gen 8 to Gen 10 models, including a new quirk providing for custom input device naming and dropping erroneous InRange reports. Signed-off-by: Brian Howard <blhoward2@gmail.com> Tested-by: Brian Howard <blhoward2@gmail.com> Tested-by: Kris Fredrick <linux.baguette800@slmail.me> Reported-by: Andrei Shumailov <gentoo1993@gmail.com> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220386 Signed-off-by: Jiri Kosina <jkosina@suse.com>
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