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authorAllen Ballway2023-01-10 20:25:50 +0000
committerGreg Kroah-Hartman2023-03-10 09:33:20 +0100
commitf380b1060ab08572fba26db63564a52f3199cf9d (patch)
tree7a6dbce930d54bbfbd302280805b9b936286f794 /include/linux
parentbe2876e01ad6a9c66b930eb074cf46c66f725644 (diff)
HID: multitouch: Add quirks for flipped axes
[ Upstream commit a2f416bf062a38bb76cccd526d2d286b8e4db4d9 ] Certain touchscreen devices, such as the ELAN9034, are oriented incorrectly and report touches on opposite points on the X and Y axes. For example, a 100x200 screen touched at (10,20) would report (90, 180) and vice versa. This is fixed by adding device quirks to transform the touch points into the correct spaces, from X -> MAX(X) - X, and Y -> MAX(Y) - Y. Signed-off-by: Allen Ballway <ballway@chromium.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Stable-dep-of: 03a86105556e ("HID: retain initial quirks set up when creating HID devices") Signed-off-by: Sasha Levin <sashal@kernel.org>
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