usbd.conf -- usbd(8) configuration file
The usbd.conf file is the configuration file for the usbd(8) daemon. It
provides information to allow execution of userland commands on events
reported by the usb(4) subsystem in the kernel. Currently the only
events are device attach and detach, but could in the future be extended
to include power management functions.
The configuration file consists of a sorted list of entries. Each entry
describes a set of criteria commands. When an event occurs, the criteria
are checked and if met, the commands for that event are executed through
a shell. The list is sorted and scanned from top to bottom. The first
matching entry is used for an event.
Each entry contains a number of fields. There are 3 types of fields:
descriptive fields, selection criteria and commands to execute on events.
The field names are case sensitive and should be all lower case. Each
field can have one or more arguments.
The following fields are available:
device string Start a new entry. string is an arbitrary string used
for pretty printing.
product id Product Id
vendor id Vendor Id
release id Release Id, also called revision Id sometimes.
class id Device Class
subclass id Device Subclass
protocol id Device Protocol
devname string Device name, for example umass2, or ums0. These device
names can contain regular expressions. See regex(3) and
re_format(7). The device name that is matched can be
used in the commands below through adding ${DEVNAME}
somewhere in that string.
String arguments may be quoted. If a string argument contains a space or
tab character it needs to be enclosed in single or double quotes. If an
argument contains a single or double quote, that quote needs to be
enclosed in double or single quotes respectively. See below for examples.
Numeric arguments can either be specified in decimal (42), octal (052) or
hexadecimal (0x2a).
The values for the fields product, vendor, release, class, subclass and
protocol can be retrieved by killing the usbd daemon and running it with
the -d and -v flags.
Commands to be executed when the action is matched:
attach string Shell command to execute when a device is attached.
detach string Shell command to execute when a device is detached.
A sample entry to rescan the SCSI bus on connection of a Iomega USB Zip
Drive:
device "USB Zip drive"
product 0x0001
vendor 0x059b
release 0x0100
attach "/usr/bin/camcontrol rescan bus 0"
To start up moused for a newly attached mouse:
device "Mouse"
devname "ums[0-9]+"
attach "/usr/sbin/moused -p /dev/${DEVNAME} -I /var/run/moused.${DEVNAME}.pid"
/etc/usbd.conf The usbd configuration file.
usb(4), usbd(8), usbdevs(8)
It is currently not possible to use a selection criterion more than once.
For example, it is not possible to specify more than one vendor ID.
This manual page was written by Nick Hibma <[email protected]>.
FreeBSD 5.2.1 November 19, 1999 FreeBSD 5.2.1 [ Back ] | 