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On tablets with ABS_PRESSURE use a pressure value to determine tip state, not BTN_TOUCH. This enables us (down the road) to have device-specific pressure thresholds. For now we use a 5% default for all devices. The threshold is a range, if we go past the upper range we initiate the tip down, if we go below the lower range we release the tip again. This affects two current tests: * Once we have pressure offsets and pressure thresholds, we're biased towards pressure. So we can only check that distance is zero when there is a pressure value, not the other way round. * When the pressure threshold is exceeded on proximity in with a nonzero distance, we can only warn and handle the pressure as normal. Since this is a niche case anyway anything fancier is likely unnecessary. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Acked-by: Jason Gerecke <jason.gerecke@wacom.com> |
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| .. | ||
| dot | ||
| style | ||
| svg | ||
| absolute-axes.dox | ||
| clickpad-softbuttons.dox | ||
| device-configuration-via-udev.dox | ||
| faqs.dox | ||
| gestures.dox | ||
| libinput.doxygen.in | ||
| Makefile.am | ||
| middle-button-emulation.svg | ||
| normalization-of-relative-motion.dox | ||
| page-hierarchy.dox | ||
| palm-detection.dox | ||
| pointer-acceleration.dox | ||
| reporting-bugs.dox | ||
| scrolling.dox | ||
| seats.dox | ||
| t440-support.dox | ||
| tablet-support.dox | ||
| tapping.dox | ||
| test-suite.dox | ||
| tools.dox | ||
| touchpad-edge-scrolling-state-machine.svg | ||
| touchpad-softbutton-state-machine.svg | ||
| touchpad-tap-state-machine.svg | ||
| touchpads.dox | ||
