RFLink connected to /dev/ttyUSB0 not working

[Rocklobster]

Hello,

I've build my own RFLink using an arduino. It work very well on RPi.

But I have problem to make it work on Rock64. It worked this morning but after a restart (sudo reboot), it didn't work anymore.
Domoticz is configured to connect to RFLink via /dev/ttyUSB0.
After the restart, I have this error :

Error: RFLink: Error opening serial port!

I have no idea to solve it. Could you please help me ?

I use ayufan's latest stable version of xenial linux.
On RPi, the solution was to add 

Code:

enable_uart=1

to /boot/config.txt but there isn't any config.txt file.


Thanks a lot !

What are the commands dmesg and lsusb showing.

Is your RFLink being recognised as being connected and if so is it assigned to dev ttyusb0

Here are the results. You're lucky because I restarted the rock64 removing the power and it worked back, so I have the results for both case, working and not working (after a soft reboot)

dmesg_working
lsusb_working

dmesg_notworking
lsusb_notworking

For your last question : 

Is your RFLink being recognised as being connected and if so is it assigned to dev ttyusb0

I don't know how to search.

At an ssh or terminal just type dmesg and tell us what the output is. Also type lsusb and tell us what the output is. The output of these two commands will indicate if your unit is recognised on your system.