Serial problems on Debian

Hello.

I’m a registered Mac user, but trying to switch to Linux, due to the obsolescence of that hardware.

I installed Debian 8 (32b) and set up everything.
However consolewd is having problems communicating with the VantagePro station (which works through minicom).
I’ve seen several threads about this, but none with a solution.

Here what I get with DEBUG environment var set:

Weather Display vers WD_console_10.1
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to help with costs, and support, thanks!
www.weather-display.com
Opened
Opening the serial port /dev/ttyUSB0
Saving serial configuration
Serial port /dev/ttyUSB0 opened File desc = 3
Comport /dev/ttyUSB0 opened
setting speed to 19200
setting baud rate to 19200 ->0
Write size 2 : 35 0a
ser_read : Entering
ser_read error Resource temporarily unavailable
Read size -1 :
ser_read : Exiting
Write size 2 : 35 0a
ser_read : Entering
ser_read error Resource temporarily unavailable
Read size -1 :
ser_read : Exiting
Write size 2 : 35 0a
Cannot write to Station !
waking VP
requesting data
Write size 1 : 4c
Write size 1 : 4f
Write size 1 : 4f
Write size 1 : 50
Write size 4 : 20 35 35 0a
Cannot write to Station vp
Opening the serial port /dev/ttyUSB0
Saving serial configuration
Serial port /dev/ttyUSB0 opened File desc = 4
Comport /dev/ttyUSB0 opened
setting speed to 19200
setting baud rate to 19200 ->0
requesting data
Write size 1 : 4c
Write size 1 : 4f
Write size 1 : 4f
Write size 1 : 50
Write size 4 : 20 35 35 0a
Cannot write to Station vp
Opening the serial port /dev/ttyUSB0
Saving serial configuration
Serial port /dev/ttyUSB0 opened File desc = 5
Comport /dev/ttyUSB0 opened
setting speed to 19200
setting baud rate to 19200 ->0

What can I try?

Thanks