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