01-16-2021, 08:14 AM
See if Ondřej's page on vibration motors can give you any clues. I'd start by looking through the input devices listed in /proc/bus/input/devices, the factory vibration motor on my 1.2b board is called "gpio-vibrator" and lists an "FF" field, presumably meaning force feedback.
Also, phosh vibrates lightly when pressing the "^" button, notification centre or typing on squeekboard.
Also, phosh vibrates lightly when pressing the "^" button, notification centre or typing on squeekboard.