Q. How do I list all USB devices connected to my computer / Linux laptop?
A.You need to use command called lsusb. It is a utility for displaying information about USB buses in the system and the devices connected to them under Linux kernel.
lsusb - list USB devices
To make use of all the features of this program, you need to have a Linux kernel which supports the /proc/bus/usb interface (e.g., Linux kernel 2.3.15 or newer).
Bus 004 Device 002: ID 0930:6532 Toshiba Corp. Bus 004 Device 001: ID 0000:0000 Bus 003 Device 001: ID 0000:0000 Bus 002 Device 001: ID 0000:0000 Bus 001 Device 001: ID 0000:0000
To get verbose output type the command:
$ lsusb -v