I was testing out the new pressure-based touch detection in libinput (on a new MBP where the sensitivy is such that it's been possible to move the mouse without actually touching the touchpad, so this new feature is very welcome) and realized that it appears the drivers must send actual ABS_MT_PRESSURE or ABS_PRESSURE events. From reading the kernel documentation at https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/plain/Documentation/input/multi-touch-protocol.txt I was under the impression that these events were only needed for devices that didn't provide ABS_MT_TOUCH_MAJOR/ABS_MT_WIDTH_MAJOR .
So my question is basically: am I misreading the above doc, and should drivers then always report pressure events even if they already report touch and width events? Btw., I noticed that the bcm5974 driver only sends only ABS_PRESSURE (not ABS_MT_PRESSURE) even though it has the ABS_MT_SLOT capability set, so AFAICT the pressure-detection won't work for that device (and the emulation in test/litest-device-bcm5974.c seems misleading since that is sending ABS_MT_PRESSURE events). Cheers, Ronald _______________________________________________ wayland-devel mailing list wayland-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-devel
