Comment 6 for bug 345002

[15577.706085] usb 4-1: new full speed USB device using uhci_hcd and address 2
[15577.901865] usb 4-1: configuration #1 chosen from 1 choice
[15577.904396] usbserial_generic 4-1:1.0: generic converter detected
[15577.904514] usb 4-1: generic converter now attached to ttyUSB0
[15577.907246] usbserial_generic 4-1:1.1: generic converter detected
[15577.907533] usb 4-1: generic converter now attached to ttyUSB1

After adding the mentioned parameters to /boot/grub/menu.lst...
Any change to have the device id included on future kernels without such hack?

And thanks for helping even this far :D