bei meinem Quadro sieht so aus:
lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0424:9514 Microchip Technology, Inc. (formerly SMSC) SMC9 514 Hub
Bus 001 Device 003: ID 0424:ec00 Microchip Technology, Inc. (formerly SMSC) SMSC 9512/9514 Fast Ethernet Adapter
Bus 001 Device 004: ID 0403:6011 Future Technology Devices International, Ltd FT 4232H Quad HS USB-UART/FIFO IC
lsusb -v -s 001:001 | grep Serial
Couldn't open device, some information will be missing
iSerial 1 3f980000.usb
ipc@Oscam-IPC116:~ $ lsusb -v -s 001:004 | grep Serial
iSerial 0
ipc@Oscam-IPC116:~ $ lsusb -v -s 001:002 | grep Serial
Couldn't open device, some information will be missing
iSerial 0
ipc@Oscam-IPC116:~ $ lsusb -v -s 001:003 | grep Serial
Couldn't open device, some information will be missing
iSerial 0