Re-attaching USB Device from the Commandline

[David Schulz]

Hello,

is there a way to re-attach a USB device (in my example; USB Keyboard) 
from the Commandline, so that to the System it appears just as if i had 
unplugged and replugged it? I am trying to work around a Problem i am 
experiencing, where a certain other Device only works right if i FIRST 
plug in a USB Keyboard, and the other one second. If i could script it 
so that even when the machine reboots, my script basically detaches my 
two USB Devices, then attaches the first one, then the second one, i 
think i can work around my above issue. Its a nasty way of doing things, 
but right now i am in urgent need of a solution, even if it is ugly.

Thanks,
David