Dell Latitude 5490 Trackpad buttons not working *Help*

[artoks90]

-Dell Latitude 5490 (Name)
-8 GB (Ram)
-64 Bits (x64)
-Intel Core i5-8250U (CPU)
-Intel UHD Graphics 620 (Video Adapter)
-OS X Mojave
-Touchpad model synaptics

Help Please fix trackpad button's can't. (Trackpad working properly). Can't find any info( how to fix

 

[sebus]

Unlikely...

it is I2C Trackpad, so would be VoodooI2C, as per this
but latest version 2.6.5 does not help either

HID\DELL0816&COL03
Manufacturer: ALPSALPINE
on Intel(R) Serial IO I2C Host Controller - 9D60