Causes the device to vibrate with a custom strength, duration, and frequency, if possible.
vibrated = lovr.headset.vibrate(device, strength, duration, frequency)
The device to vibrate.
The strength of the vibration (amplitude), between 0 and 1.
The duration of the vibration, in seconds.
The frequency of the vibration, in hertz. 0 will use a default frequency.
Whether the vibration was successfully triggered by an active headset driver.