command: lsusb
usage: list USB devices
syntax: $ lsusb [options]...
example:
1. To list all the USB devices connected
$ lsusb
2. To print with descriptors (Increase verbosity) of USB devices
$ lsusb -v
3. To show only devices with specified device and/or
bus numbers in decimal
$ lsusb -s 001
4. To show only devices with the specified vendor and
product ID numbers in hexadecimal
$ lsusb -d vendor:[product]
5. To select which device lsusb will examine
$ lsusb -D /dev/bus/usb/001/004
6. To print physical USB device hierarchy as a tree
$ lsusb -t
7. To check how many USB ports available in our machine
so that we can connect USB devices to these ports
$ find /dev/bus/
regards,
dhanasekar
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