Set USB Static ports numbers

root@cmd1:~# udevadm info -a -n /dev/ttyUSB0 | grep ‘KERNELS’
KERNELS==”ttyUSB0″
KERNELS==”3-1.2.1:1.0″
KERNELS==”3-1.2.1″
KERNELS==”3-1.2″
KERNELS==”3-1″
KERNELS==”usb3″
KERNELS==”0000:00:1a.0″
KERNELS==”pci0000:00″
root@cmd1:~#nano /etc/udev/rules.d/99-usb-serial.rules

SUBSYSTEM==”tty”, KERNELS==”3-1.3.1:1.0″, SYMLINK+=”ttyUSB.Port1″
SUBSYSTEM==”tty”, KERNELS==”3-1.3.4:1.0″, SYMLINK+=”ttyUSB.Port2″
SUBSYSTEM==”tty”, KERNELS==”3-1.2.1:1.0″, SYMLINK+=”ttyUSB.Port3″
SUBSYSTEM==”tty”, KERNELS==”3-1.2.2:1.0″, SYMLINK+=”ttyUSB.Port4″
SUBSYSTEM==”tty”, KERNELS==”3-1.4.1:1.0″, SYMLINK+=”ttyUSB.Port5″
SUBSYSTEM==”tty”, KERNELS==”3-1.2.3:1.0″, SYMLINK+=”ttyUSB.Port6″
SUBSYSTEM==”tty”, KERNELS==”3-1.4.2:1.0″, SYMLINK+=”ttyUSB.Port7″
SUBSYSTEM==”tty”, KERNELS==”3-1.2.4:1.0″, SYMLINK+=”ttyUSB.Port8″
SUBSYSTEM==”tty”, KERNELS==”3-1.4.3:1.0″, SYMLINK+=”ttyUSB.Port9″
SUBSYSTEM==”tty”, KERNELS==”3-1.4.4:1.0″, SYMLINK+=”ttyUSB.Port10″
SUBSYSTEM==”tty”, KERNELS==”3-1.3.3:1.0″, SYMLINK+=”ttyUSB.Port11″