/var/log/messages
	kernel: uftdi0: FTDI USB HS SERIAL CONVERTER, rev 1.10/2.00, addr 2

usbdevs -v の結果
Controller /dev/usb1:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x0000), rev 1.00
 port 1 addr 2: full speed, power 44 mA, config 1, USB HS SERIAL CONVERTER(0x6001), FTDI(0x0403), rev 2.00
 port 2 powered