Hello,
I just opened up my brand new 
Odroid C2 and started configuring it. I'm only having one issue... I can't get it to work with my Prolific PL-2303 USB to Serial dongle. I currently use the dongle with my RPi2 running LE. It shows up as /dev/ttyUSB0 and works no problem. However, it doesn't appear with the C2.
The C2 sees it:
LibreELEC:~ # lsusb
Bus 001 Device 003: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port
But that is it.
Any thoughts on what is missing in the C2 compared to the RPi2? Do I need to compile my own LE with some kernel module? If so, any guidance would be much appreciated.
Thanks!
Edit:
Digging a bit further, I see the RPi build has /lib/modules/4.8.2/kernel/drivers/usb/serial/pl2303.ko in it, but this doesn't exist in the Odroid C2 build. Searching github shows projects/RPi2/linux/linux.arm.conf contains the line "CONFIG_USB_SERIAL_PL2303=m" and projects/Odroid_C2/linux/linux.aarch64.conf contains "# CONFIG_USB_SERIAL_PL2303 is not set". Those .conf files indicate they are automatically generated; is there a package.mk somewhere that I could add to the Odroid C2 build to add that module?