Linux Commands Examples

A great documentation place for Linux commands

usb-devices

print USB device details


see also : lsusb

Synopsis

usb-devices


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examples

0
source 
            

  addfile /sys/debug/usb/devices




  elif type
  usb-devices >/dev/null 2>&1; then




  # planned (2009/06) to be added in
  usbutils




  # planned (2009/06) to be added in
  usbutils




  usb-devices 2>&1 | addinfo usb-devices




  elif type lsusb
  >/dev/null 2>&1; then




  lsusb 2>&1 | addinfo lsusb

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 output.

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.

return value

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


see also

lsusb , usbview.


authors

Greg Kroah-Hartman <greg[:at:]kroah[:dot:]com>

Randy Dunlap <rdunlap[:at:]xenotime[:dot:]net>

Frans Pop <elendil[:at:]planet[:dot:]nl>

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