.TH USB_ID 8 "January 2009" "" "Linux Administrator's Manual"
.SH NAME
usb_id \- udev callout to read information from USB devices
.SH SYNOPSIS
.B usb_id
[\fB--usb-info\fP] [\fB--num-info\fP] [\fB--export\fP] [\fB--debug\fP]
.I devpath
.br
.B usb_id --help
.SH "DESCRIPTION"
.B usb_id
is normally called from a udev rule, to provide udev with a unique string and
additional information (uuid, label) for a USB device. Udev can use this
information to create symlinks in /dev to the real device node.
.SH USAGE
.B usb_id \fIdevpath\fP
opens the device node specified at the commandline and prints the
information chosen by the options.
.SH OPTIONS
The following commandline switches are supported to specify what usb_id
should print:
.TP
.B -u, --usb-info
print USB strings instead of, e.g. SCSI strings for a mass storage device
.TP
.B -n, --num-info
print numerical values instead of strings. Implies \fB--usb-info\fP.
.TP
.B -x, --export
print values as environment keys
.TP
.B -h, --help
print usage help
.RE
.SH SEE ALSO
.BR udev (7)
.SH AUTHORS
Developed by Hannes Reinecke <hare@suse.de>.