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libinput.md

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Guide for bare libinput support in Qt5

run:

export PATH=$PATH:/home/build/inkbox/compiled-binaries/arm-kobo-linux-gnueabihf/bin/

kmod

git clone https://github.com/lucasdemarchi/kmod

run autogen, then

CHOST=arm CC=arm-kobo-linux-gnueabihf-gcc \
AR=arm-kobo-linux-gnueabihf-ar \
RANLIB=arm-kobo-linux-gnueabihf-ranlib \
CXX=arm-kobo-linux-gnueabihf-g++ \
LINK=arm-kobo-linux-gnueabihf-g++ \
LD=arm-kobo-linux-gnueabihf-ld \
ARCH=arm CROSS_COMPILE=arm-kobo-linux-gnueabihf- \
./configure --host=arm-linux-gnueabihf --prefix=/home/build/inkbox/compiled-binaries/arm-kobo-linux-gnueabihf/arm-kobo-linux-gnueabihf/sysroot/

well and

make -j 8
sudo make install

blkid - util-linux

get an older version

wget https://cdn.kernel.org/pub/linux/utils/util-linux/v2.36/util-linux-2.36-rc1.tar.gz

well you know, then

CHOST=arm \
CC=arm-kobo-linux-gnueabihf-gcc \
AR=arm-kobo-linux-gnueabihf-ar \
RANLIB=arm-kobo-linux-gnueabihf-ranlib \
CXX=arm-kobo-linux-gnueabihf-g++ \
LINK=arm-kobo-linux-gnueabihf-g++ \
LD=arm-kobo-linux-gnueabihf-ld \
ARCH=arm \
CROSS_COMPILE=arm-kobo-linux-gnueabihf- \
./configure --host=arm-linux-gnueabihf --prefix=/home/build/inkbox/compiled-binaries/arm-kobo-linux-gnueabihf/arm-kobo-linux-gnueabihf/sysroot/ --disable-all-programs --enable-libblkid --enable-blkid

Libudev - eudev

git clone https://github.com/eudev-project/eudev

run

./autogen.sh

then

CHOST=arm CC=arm-kobo-linux-gnueabihf-gcc \
AR=arm-kobo-linux-gnueabihf-ar \
RANLIB=arm-kobo-linux-gnueabihf-ranlib \
CXX=arm-kobo-linux-gnueabihf-g++ \
LINK=arm-kobo-linux-gnueabihf-g++ \
LD=arm-kobo-linux-gnueabihf-ld \
ARCH=arm CROSS_COMPILE=arm-kobo-linux-gnueabihf- \
./configure --host=arm-linux-gnueabihf --prefix=/home/build/inkbox/compiled-binaries/arm-kobo-linux-gnueabihf/arm-kobo-linux-gnueabihf/sysroot/ -disable-selinux --disable-manpages

edit src/udev/udev-builtin-input_id.c and add

#define INPUT_PROP_DIRECT              0x01    /* direct input devices */
#define ABS_MT_SLOT            0x2f    /* MT slot being modified */
#define BTN_TRIGGER_HAPPY1             0x2c0
#define BTN_TRIGGER_HAPPY40            0x2e7

this is fetched from other files, libraries: mtdev, libwacom. linux/input-event-codes.h

in src/v4l_id/v4l_id.c remove those all lines in main and add a return -1, maybe a message saying this file is cursed too.

idk why, but this is needed:

C_INCLUDE_PATH=/home/build/inkbox/compiled-binaries/arm-kobo-linux-gnueabihf/arm-kobo-linux-gnueabihf/sysroot/include/ make -j 8

mtdev

git clone https://github.com/rydberg/mtdev

CHOST=arm CC=arm-kobo-linux-gnueabihf-gcc \
AR=arm-kobo-linux-gnueabihf-ar \
RANLIB=arm-kobo-linux-gnueabihf-ranlib \
CXX=arm-kobo-linux-gnueabihf-g++ \
LINK=arm-kobo-linux-gnueabihf-g++ \
LD=arm-kobo-linux-gnueabihf-ld \
ARCH=arm CROSS_COMPILE=arm-kobo-linux-gnueabihf- \
./configure --host=arm-linux-gnueabihf --prefix=/home/build/inkbox/compiled-binaries/arm-kobo-linux-gnueabihf/arm-kobo-linux-gnueabihf/sysroot/

libevdev

git clone https://gitlab.freedesktop.org/libevdev/libevdev

the command for configure is the same as in mtdev, the regular one

Libinput

git clone https://gitlab.freedesktop.org/libinput/libinput/

in meson options for libinput set

  • libwacom to false
  • tests to false
  • debug-gui to false

then run:

DESTDIR=/home/build/inkbox/compiled-binaries/arm-kobo-linux-gnueabihf/arm-kobo-linux-gnueabihf/sysroot meson setup --cross-file ../meson-kobo.txt build

cd build
ninja

meson install --destdir /home/build/inkbox/compiled-binaries/arm-kobo-linux-gnueabihf/arm-kobo-linux-gnueabihf/sysroot

Now for Qt, additionally we need:

libxkbcommon

git clone https://github.com/xkbcommon/libxkbcommon

in meson option:

  • enable-x11 to false
  • enable-docs to false
  • enable-wayland to false

the rest is as in libinput with meson

Changes for Qt:

export SYSROOT=/home/build/inkbox/compiled-binaries/arm-kobo-linux-gnueabihf/arm-kobo-linux-gnueabihf/sysroot/

./configure --recheck-all -opensource -confirm-license -release -verbose \
 -prefix /mnt/onboard/.adds/${QTDIR} \
 -extprefix /home/build/inkbox/compiled-binaries/qt-bin/${QTDIR} \
 -xplatform linux-kobo-gnueabihf-g++ \
 -sysroot ${SYSROOT} \
 -openssl-linked OPENSSL_PREFIX="${SYSROOT}/usr" \
 -qt-libjpeg -qt-zlib -qt-libpng -qt-freetype -qt-harfbuzz -qt-pcre -sql-sqlite -linuxfb \
 -no-sse2 -no-xcb -no-xcb-xlib -no-tslib -no-icu -no-iconv -no-dbus \
 -nomake tests -nomake examples -no-compile-examples -no-opengl \
 -skip qtx11extras -skip qtwayland -skip qtwinextras -skip qtmacextras -skip qtandroidextras \
 -skip qttools -skip qtdoc -skip qtlocation -skip qtremoteobjects -skip qtconnectivity -skip qtgamepad \
 -skip qt3d -skip qtquick3d -skip qtquickcontrols -skip qtsensors -skip qtspeech -skip qtdatavis3d \
 -skip qtpurchasing -skip qtserialbus -skip qtserialport -skip multimedia -skip qtquicktimeline -skip qtlottie \
 -skip activeqt -skip qtscript -skip qtxmlpatterns -skip qtscxml -skip qtvirtualkeyboard \
 -skip qtwebengine -skip qtwebview -skip qtwebglplugin \
 -no-cups -no-pch -no-libproxy \
 -no-feature-printdialog -no-feature-printer -no-feature-printpreviewdialog -no-feature-printpreviewwidget \
 -libudev -evdev -libinput -xkbcommon

look out for errors with xkbcommon, if it all passed then good. i needed to do:

cd /home/build/inkbox/compiled-binaries/arm-kobo-linux-gnueabihf/arm-kobo-linux-gnueabihf/sysroot/
cp -r usr/local/lib/pkgconfig/* usr/lib/pkgconfig
cp -r lib/pkgconfig/* usr/lib/pkgconfig
sudo cp ./include/libudev.h usr/include

to debug apps:

QT_DEBUG_PLUGINS=1 QT_LOGGING_RULES=qt.qpa.input=true

to ignore devices:

ACTION=="add|change", SUBSYSTEM=="input", KERNEL=="event[0-1]*", ATTR{enabled}="0", ATTR{authorized}="0", ENV{LIBINPUT_IGNORE_DEVICE}="1"

to set a custom keymap:

XKB_DEFAULT_LAYOUT=us