Use ABS_RESERVED instead of ABS_MT_SLOT - 1
Will be available in v4.19 or so, see https://www.spinics.net/lists/linux-input/msg58315.html. This is a mechanical change only.
Will be available in v4.19 or so, see https://www.spinics.net/lists/linux-input/msg58315.html. This is a mechanical change only.