I think probably each USB chain will appear as one unit. Not sure yet as I haven't got into the cgminer code, but if you have a dozen or two boards you don't really want a display with 12-24 lines of 300MHz each - or do you? I wouldn't. And what about people with 60 boards on one chain...
That is true for sure. let us say a have 10 ttyUSb or 10 boards not chained. if there is usb serial i can write udev rules and name them so i will know for sure that ttyKLO1 matches particular board. When there is issue i do not have to disconnect and reconnect the boards one by one to find out which board is causing it. Otherwise on each reboot linux will auto name the boards and their tty name will be different. That is what i am talking about
The similar question and response for Icarus boards
https://bitcointalk.org/index.php?topic=79835.msg1164605#msg1164605When USB has serial or some unique attribute it will be golden for dudes having more than one board - Multiple usb cables going to a hub
Otherwise we will have many ttyUSb not knowing which board corresponds to what
PS: i am not mentioning the fact that there might be other usb devices in the system and multiple instances of cgminer to be executd one for Icarus one for Klondike and so on. Having the option to assign unique name to each ttyUSb will save us a lot of trouble. the cgminer will be feed with -S/dev/TTY accordingly