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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 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 output.


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  informa‐
              tion.

       /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 <greg AT kroah.com>

       Randy Dunlap <rdunlap AT xenotime.net>

       Frans Pop <elendil AT planet.nl>



usbutils-014                                23 June 2009                              usb-devices(1)