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).
|Tells lsusb to be verbose and display detailed information about the devices shown. This includes configuration descriptors for the devices current speed. Class descriptors will be shown, when available, for USB device classes including hub, audio, HID, communications, and chipcard.|
|Show only devices in specified bus and/or devnum. Both IDs are given in decimal and may be omitted.|
|Show only devices with the specified vendor and product ID. Both IDs are given in hexadecimal.|
|Do not scan the /proc/bus/usb directory, instead display only information about the device whose device file is given. The device file should be something like /proc/bus/usb/001/001. This option displays detailed information like the v option; you must be root to do this.|
|-t||Tells lsusb to dump the physical USB device hierarchy as a tree.|
Print version information on standard output,
then exit successfully.
|cannot open /proc/bus/usb/nnn/nnn, Permission denied (13)|
To get detailed information,
lsusb must open the files in /proc/bus/usb in read-write mode.
You must be root in order to do this.
|A list of all known USB IDs (vendors, products, classes, subclasses and protocols).|
An interface to USB devices provided by the post-2.3.15 Linux
kernels. Contains per-bus subdirectories with per-device files and a
devices file displaying some of the descriptors for each USB device.
This interface is also support by some 2.2 Linux kernels.