dmesg | tail:
[ 329.500034] usb 1-3: USB disconnect, device number 6
[ 333.596061] usb 1-3: new high-speed USB device number 7 using ehci_hcd
lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 007: ID 8564:1000
Bus 001 Device 004: ID 13d3:5711 IMC Networks
Собственно сабж.
ls /dev/ выдаёт только sda устройства.