lsusb
(8)list USB devices
Options
6-v--verboseTells lsusb to be verbose and display detailed information about the devices shown. This includes configuration descriptors for the device's current speed. Class descriptors will be shown, when available, for USB device classes including hub, audio, HID, communications, and chipcard. Can be used with the -t option.
-sbusShow only devices in specified bus and/or devnum. Both IDs are given in decimal and may be omitted.
-dvendorShow only devices with the specified vendor and product ID. Both IDs are given in hexadecimal.
-DdeviceDo not scan the /dev/bus/usb directory, instead display only information about the device whose device file is given. The device file should be something like /dev/bus/usb/001/001. This option displays detailed information like the -v option; you must be root to do this.
-t--treeTells lsusb to dump the physical USB device hierarchy as a tree. Verbosity can be increased twice with the -v option.
-V--versionPrint version information on standard output, then exit successfully.