Good time, experts.

Prompt, there is a computer with Debian 9. It is necessary to connect the gnss device javad triumph2 with it.

The connection between debian and triumph is via usb. The device manufacturer has Linux drivers libftd2xx-x86_64-1.4.8.gz on the website, which are a replacement for the standard ftdi_sio and usbserial.
There is also ReadMe.txt, with an explanation of how to install them. Also on the site of the FTDI chip manufacturer there is a pdf with a description of the installation. Unfortunately, neither an attempt to install using the readme or the description nor googling led to the desired result

The connection test from the archive with the driver gives an error like

/javad/release/examples/EEPROM/read # ./read
Library version = 0x10408
Opening port 0
FT_Open (0) failed

Can anyone come across a driver installation for FTDI? I ask for advice ...

You don't tell us what's in the installation instructions, or what you did/tried, and all we know is you're not getting the 'desired result'. We don't know anything about that device or the instructions. Chances are, if it can't open port 0, you need to configure something to tell it what port to use.

Get to a terminal window, and type in "sudo dmesg -c", before you plug the device in. Then connect it, wait a few seconds, and run "dmesg", to see what it gives you, along with running the "lsusb" command. Post those results (using CODE tags) and we can try to help. Otherwise, have you contacted support from whomever you bought this device from?

delete this post, pls

Thanks TB0ne

I did everything exactly according to the instructions (in the attached file ReadMe.txt)
link to the manufacturer's website, if necessary d2xx-drivers
Dmesg output in attached files...

Attached Files

	ReadMe.txt (3.3 KB, 37 views)
	before.txt (50.7 KB, 26 views)
	after.txt (381 Bytes, 21 views)