Sorry, I make an error when I described my console commands. Instead of
I tried also $ gpsman -prot -dev usb=/dev/bus/usb/004/003 is connected and I get Cannot open serial port /dev/bus/usb/004/003 I meant I tried also $ gpsman -dev usb=/dev/bus/usb/004/003 is connected and I get Cannot open serial port /dev/bus/usb/004/003 Regards, Alex