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HID: wacom: Correct touch maximum XY of 2nd-gen Intuos
[ Upstream commit3b8d573586
] The touch sensors on the 2nd-gen Intuos tablets don't use a 4096x4096 sensor like other similar tablets (3rd-gen Bamboo, Intuos5, etc.). The incorrect maximum XY values don't normally affect userspace since touch input from these devices is typically relative rather than absolute. It does, however, cause problems when absolute distances need to be measured, e.g. for gesture recognition. Since the resolution of the touch sensor on these devices is 10 units / mm (versus 100 for the pen sensor), the proper maximum values can be calculated by simply dividing by 10. Fixes:b5fd2a3e92
("Input: wacom - add support for three new Intuos devices") Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 8 additions and 2 deletions
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@ -3212,8 +3212,14 @@ void wacom_setup_device_quirks(struct wacom *wacom)
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if (features->type >= INTUOSHT && features->type <= BAMBOO_PT)
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features->device_type |= WACOM_DEVICETYPE_PAD;
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features->x_max = 4096;
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features->y_max = 4096;
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if (features->type == INTUOSHT2) {
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features->x_max = features->x_max / 10;
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features->y_max = features->y_max / 10;
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}
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else {
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features->x_max = 4096;
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features->y_max = 4096;
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}
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}
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else if (features->pktlen == WACOM_PKGLEN_BBTOUCH) {
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features->device_type |= WACOM_DEVICETYPE_PAD;
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