http://www.yaesu.com/indexVS.cfm?cmd=DisplayProducts&encProdID=8CBB7C4BDBAF40129AD4253A4987523C
http://www.qsl.net/ok1if/FT857/ft857.htm
ft-857_brochure.pdf
ft-857d_om_eng_eh007m102_v2.pdf

dmesg
[  587.204020] usb 2-1: new full-speed USB device number 8 using uhci_hcd
[  587.408040] usb 2-1: New USB device found, idVendor=2100, idProduct=0e56
[  587.408045] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  587.408049] usb 2-1: Product: CT62C Radio Cable
[  587.408053] usb 2-1: Manufacturer: RT Systems
[  587.408056] usb 2-1: SerialNumber: RT8UCGT

sudo nano /var/lib/usbutils/usb.ids

2100  RT Systems
        0e56  USB-62C #add code of your cable
        9e52  Yaesu VX-7
        9e54  CT29B Radio Cable
        9e57  RTS01 Radio Cable
        9e5d  K4Y Radio Cable
        9e5f  FT232RL [RTS05 Serial Cable]

modprobe ftdi-sio

#nano /sys/bus/usb-serial/drivers/ftdi_sio/new_id

paste

2100 0e56

ctrl+x, yes

udevadm control --reload-rules

dmesg
[  986.220018] usb 2-1: new full-speed USB device number 10 using uhci_hcd
[  986.420061] usb 2-1: New USB device found, idVendor=2100, idProduct=0e56
[  986.420067] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  986.420071] usb 2-1: Product: CT62C Radio Cable
[  986.420075] usb 2-1: Manufacturer: RT Systems
[  986.420078] usb 2-1: SerialNumber: RT8UCGT
[  986.428154] ftdi_sio 2-1:1.0: FTDI USB Serial Device converter detected
[  986.428211] usb 2-1: Detected FT-X
[  986.430136] usb 2-1: FTDI USB Serial Device converter now attached to ttyUSB0

https://www.rtsystemsinc.com/USB-62-Programming-CAT-Cable-p/usb-62.htm
http://chirp.danplanet.com/projects/chirp/wiki/Home
https://ubuntuforums.org/showthread.php?t=2259068

Start TCVR by power button holding mode < & > as in picture below.

Select Radio > Download from radio

Press key C for sending.

For uploading configuration from CHIRP to TCVR select first RCV by key A

And after you can upload config.