ukbd(4)

NAME

ukbd - USB keyboard driver

SYNOPSIS

device ukbd

DESCRIPTION

The ukbd driver provides support for keyboards that attach

to the USB
port. usb(4) and one of uhci(4) or ohci(4) must be config

ured in the
kernel as well.

CONFIGURATION

By default, the keyboard subsystem does not create the ap

propriate
devices yet. Make sure you reconfigure your kernel with the

following
option in the kernel config file:

options KBD_INSTALL_CDEV

If both an AT keyboard USB keyboards are used at the same

time, the AT
keyboard will appear as kbd0 in /dev. The USB keyboards

will be kbd1,
kbd2, etc. You can see some information about the keyboard

with the following command:

kbdcontrol -i < /dev/kbd1

or load a keymap with

kbdcontrol -l keymaps/pt.iso < /dev/kbd1

See kbdcontrol(1) for more possible options.

You can swap console keyboards by using the command

kbdcontrol -k /dev/kbd1

From this point on, the first USB keyboard will be the key

board to be
used by the console.

If you want to use a USB keyboard as your default and not

use an AT keyboard at all, you will have to remove the device atkbd line

from the kernel configuration file. Because of the device initializa

tion order, the
USB keyboard will be detected after the console driver ini

tializes itself
and you have to explicitly tell the console driver to use

the existence
of the USB keyboard. This can be done in one of the follow

ing two ways.

Run the following command as a part of system initializa

tion:

kbdcontrol -k /dev/kbd0 < /dev/ttyv0 > /dev/null

(Note that as the USB keyboard is the only keyboard, it is

accessed as
/dev/kbd0) or otherwise tell the console driver to periodi

cally look for
a keyboard by setting a flag in the kernel configuration

file:

device sc0 at isa? flags 0x100

With the above flag, the console driver will try to detect

any keyboard
in the system if it did not detect one while it was initial

ized at boot
time.

DRIVER CONFIGURATION

options KBD_INSTALL_CDEV

Make the keyboards available through a character device in

/dev.

options UKBD_DFLT_KEYMAP makeoptions UKBD_DFLT_KEYMAP=fr.iso

The above lines will put the French ISO keymap in the ukbd

driver. You
can specify any keymap in /usr/share/syscons/keymaps with

this option.

options KBD_DISABLE_KEYMAP_LOADING

Do not allow the user to change the keymap. Note that these

options also
affect the AT keyboard driver, atkbd(4).

FILES

/dev/kbd* blocking device nodes

EXAMPLES

device ukbd

Add the ukbd driver to the kernel.

SEE ALSO

kbdcontrol(1), ohci(4), syscons(4), uhci(4), usb(4), con

fig(8)

AUTHORS

The ukbd driver was written by Lennart Augustsson
<augustss@cs.chalmers.se> for NetBSD and was substantially

rewritten for
FreeBSD by Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya

u.ac.jp>.

This manual page was written by Nick Hibma <n_hibma@FreeB

SD.org> with a
large amount of input from Kazutaka YOKOTA
<yokota@zodiac.mech.utsunomiya-u.ac.jp>.

BSD April 11, 1999

BSD