usbdevs -v: port 1 addr 2: self powered, config 1, UT-USB41 hub(0x1446), Texas Instruments(0x0451), rev 1.10 insert: uhub2: Texas Instruments UT-USB41 hub, class 9/0, rev 1.10/1.10, addr 2 uhub2: 4 ports with 4 removable, self powered remove: uhub2: at uhub0 port 1 (addr 2) disconnected uhub2: detached