At 11:33 AM +1200 4/8/04, Tim Streeter wrote: >I have been using cheap USB to serial converters, made by 'Planet', and >they have an annoying feature/bug of the same device getting alocated a >new port number if pluged into a differend USB port. This is not much of >a problem if only 1 usb to serial converter is used, but I am using 4 >connected to a hub. >I know the reason for this 'feature', it is because the devices are >cheap and only identified, by the driver, through its place in the USB >tree. > >My question is: >Does anybody know of a USB to serial converter, that doesn't suffer from >the above feature, that they can recommend.
The keyspan twin adaptors do the same thing. However I merely plugged them into all the ports and then for each port configured it to have the same port name using the driver software. (ie "modem" and "printer"). I then set up the VISA.ini file to use visa serial ports 1 and 2 for "modem" and "printer". This works fine, except for one bug in the Keyspan driver where you can't repeat this process for more than 8 ports or the configuration software locks up. I think it may be inherent that a USB device is identified by the physical location in the network. -Scott
