Hi,
> + /*
> + * Since 29cc309d8bf1 (HID: hid-multitouch: forward MSC_TIMESTAMP),
> + * EV_MSC/MSC_TIMESTAMP is added to each before EV_SYN event.
> + * EV_MSC is configured as INPUT_PASS_TO_ALL.
> + * In case of touch device:
> + * BE pass EV_MSC/MSC_TIMESTAMP to
In 'commit 29cc309d8bf1 ("HID: hid-multitouch: forward MSC_TIMESTAMP")',
EV_MSC/MSC_TIMESTAMP is added to each before EV_SYN event. EV_MSC is
configured as INPUT_PASS_TO_ALL.
In case of a touch device which report MSC_TIMESTAMP:
BE pass EV_MSC/MSC_TIMESTAMP to FE on receiving event from evdev.
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