Linux Commands Examples

A great documentation place for Linux commands


print USB device details

see also : lsusb



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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


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.



The part of the sysfs tree the script walks through to assemble the printed information.


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


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.


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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