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So far we've relied on the wacom kernel module to do touch arbitration for us but that won't be the case in upcoming kernels. Implement touch arbitration in userspace by pairing the two devices and suspending the touch device whenever a tool comes into proximity. In the future more sophisticated arbitration can be done (e.g. only touches which are close to the pen) but let's burn that bridge when we have to cross it. Note that touch arbitration is "device suspend light", i.e. we leave the device enabled and the fd is active. Tablet interactions are comparatively short-lived, so closing the fd and asking logind for a new one every time the pen changes proximity is suboptimal. Instead, we just keep a boolean around and discard all events while it is set. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com> |
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| .. | ||
| dot | ||
| style | ||
| svg | ||
| absolute-axes.dox | ||
| absolute-coordinate-ranges.dox | ||
| building.dox | ||
| clickpad-softbuttons.dox | ||
| device-configuration-via-udev.dox | ||
| faqs.dox | ||
| gestures.dox | ||
| libinput.doxygen.in | ||
| Makefile.am | ||
| middle-button-emulation.dox | ||
| 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-jumping-cursors.dox | ||
| touchpad-softbutton-state-machine.svg | ||
| touchpad-tap-state-machine.svg | ||
| touchpads.dox | ||
