Making custom udev entries

# udevadm info -a -p $(udevadm info -q path -n /dev/ttyUSB0)| grep ATTRS{serial}
    ATTRS{serial}=="A9KJB1T5"
#

create a file in /etc/udev/rules.d/

99-arduino.rules

SUBSYSTEMS=="usb", ATTRS{serial}=="A9KJB1T5" , KERNEL=="ttyUSB?", SYMLINK+="sump",  GROUP="dialout"

Then, reload the rules,

~# udevadm control --reload-rules