Linux for RK3188 based TV boxes

[biemster]

What version of Ubuntu is it in the first post?
I'm looking to do this to run plex

I believe it is PicUntu 4.5, which is based on 13.04.

https://liliputing.com/2013/10/picuntu-4-5-installer-loads-ubuntu-onto-rockchip-rk3188-devices.html

[nmr50]

Hello everyone !

I'm using dx05_nand_debian_1.1.1.img on Kingnovel K-R42 media player, and not a long time ago I decided to make this r42 device as phone spammers' block host.

I did found .pl script that is working nice on the notebook with USRrobotics USR5637 USB modem, but when I attach this USB modem to my r42 I cannot find /dev/ttyACM, 'tho modem is being recognized:
[Mon Dec 9 11:15:08 2019] usb 2-1.2: new high speed USB device number 15 using usb20_host
[Mon Dec 9 11:15:08 2019] usb 2-1.2: New USB device found, idVendor=0baf, idProduct=0303
[Mon Dec 9 11:15:08 2019] usb 2-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=10
[Mon Dec 9 11:15:08 2019] usb 2-1.2: Product: USB Modem
[Mon Dec 9 11:15:08 2019] usb 2-1.2: Manufacturer: U.S.Robotics
[Mon Dec 9 11:15:08 2019] usb 2-1.2: SerialNumber: 0000002

What I found about this ttyACM0 on ubuntu forums:
The ttyACM0 device comes from a CDC modem interface. Unless it's compiled in your kernel you probably wont see the ttyACM0 devices.

Maybe there exists a simple way to compile only "CDC modem interface" module and put it to kernel folder, to let linux know about this module, so I can get /dev/ttyACM without recompiling all the stuff ?

Thanks in advance!
-t

*UPDATE*

I did recompile the kernel with modules for this dx05_nand_debian_1.1.1.img, got needed cdc-acm.ko module that is capable with USB modems and other devices - now I see /dev/ttyACM for USB modem on my android device...and here is this .ko module (WinRAR v5 archive - RENAME .TXT to .RAR !) for the case if someone needed it.