[RK3288-PC] - Need support TUN/TAP interface

Hi Firefly Dev team,

I am using RK3288PC and have a project which needs to use openVPN
The current Linux firmware does not support TUN/TAP interface.
Do you have any idea to install “tun”? I have found on the internet but all solutions are failed.
If not, do you have any plan to implement this interface to Linux firmware?

______ Environment ______
RK-3288-PC
This issue happens on both SD card and eMMCs,
Linux Ver: Ubuntu 18.04


Have a nice working day,
Thanks and Regards,
Felix Nguyen

Have you solved this problem yet? Can you give me a solution? Thank you so much