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 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 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 <greg@kroah.com>
Randy Dunlap <rdunlap@xenotime.net>
Frans Pop <elendil@planet.nl>