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usb-devices(1)                Linux USB Utilities               usb-devices(1)



NAME
       usb-devices - print USB device details

SYNOPSIS
       usb-devices


DESCRIPTION
       usb-devices  is  a  (bash)  shell script that can be used to display details of USB buses in the system and the
       devices connected to them.

       The output of the script is similar to the usb/devices file available  either  under  /proc/bus  (if  usbfs  is
       mounted), or under /sys/kernel/debug (if debugfs is mounted there). The script is primarily intended to be used
       if the file is not available.

       In contrast to the usb/devices file, this script only lists active interfaces (those marked with a "*"  in  the
       usb/devices file) and their endpoints.

       Be advised that there can be differences in the way information is sorted, as well as in the format of the out-
       put.


RETURN VALUE
       If sysfs is not mounted, a non-zero exit code is returned.


FILES
       /sys/bus/usb/devices/usb*
              The part of the sysfs tree the script walks through to assemble the printed information.

       /proc/bus/usb/devices
              Location where the usb/devices file can normally be found for Linux kernels before 2.6.31, if  usbfs  is
              mounted.

       /sys/kernel/debug/usb/devices
              Location  where the usb/devices file can normally be found for Linux kernel 2.6.31 and later, if debugfs
              is mounted.


SEE ALSO
       lsusb(8), usbview(8).


AUTHORS
       Greg Kroah-Hartman <gregATkroah.com>

       Randy Dunlap <rdunlapATxenotime.net>

       Frans Pop <elendilATplanet.nl>



usbutils-003                     23 June 2009                   usb-devices(1)