atkbd(4)

NAME

atkbd - the AT keyboard interface

SYNOPSIS

options ATKBD_DFLT_KEYMAP
makeoptions ATKBD_DFLT_KEYMAP=_keymap_name_
options KBD_DISABLE_KEYMAP_LOAD
device atkbd
In /boot/device.hints:
hint.atkbd.0.at="atkbdc"
hint.atkbd.0.irq="1"

DESCRIPTION

The atkbd driver, together with the atkbdc driver, provides

access to the
AT 84 keyboard or the AT enhanced keyboard which is connect

ed to the AT
keyboard controller.

This driver is required for the console drivers syscons(4)

and pcvt(4).

There can be only one atkbd device defined in the kernel

configuration
file. This device also requires the atkbdc keyboard con

troller to be
present. The irq number must always be 1; there is no pro

vision of
changing the number.

Function Keys

The AT keyboard has a number of function keys. They are

numbered as follows and can be associated with strings by the kbdcontrol(1)

command.

Function Key number Function Key
1, 2,...12 F1, F2,... F12
13, 14,...24 Shift+F1, Shift+F2,... Shift+F12
25, 26,...36 Ctl+F1, Ctl+F2,... Ctl+F12
37, 38,...48 Shift+Ctl+F1, Shift+Ctl+F2,...

Shift+Ctl+F12
49 Home and Numpad 7 (without NumLock)
50 Up Arrow and Numpad 8 (without NumLock)
51 Page Up and Numpad 9 (without NumLock)
52 Numpad 53 Left Arrow and Numpad 4 (without Num

Lock)
54 Numpad 5 (without NumLock)
55 Right Arrow and Numpad 6 (without Num

Lock)
56 Numpad +
57 End and Numpad 1 (without NumLock)
58 Down Arrow and Numpad 2 (without Num

Lock)
59 Page Down and Numpad 3 (without Num

Lock)
60 Ins and Numpad 0 (without NumLock)
61 Del
62 Left GUI Key
63 Right GUI Key
64 Menu

See the man page for the kbdcontrol(1) command for how to

assign a string
to the function key.

DRIVER CONFIGURATION

Kernel Configuration Options

The following kernel configuration options control the atkbd

driver.

ATKBD_DFLT_KEYMAP

This option sets the default, built-in keymap of

the atkbd
driver to the named keymap. See EXAMPLES below.

KBD_DISABLE_KEYMAP_LOAD

The keymap can be modified by the kbdcontrol(1)

command.
This option will disable this feature and pre

vent the user
from changing key assignment.

Driver Flags

The atkbd driver accepts the following driver flags. They

can be set
either in /boot/device.hints, or else from within the boot

loader (see
loader(8)).

bit 0 (FAIL_IF_NO_KBD)

By default the atkbd driver will install even if a

keyboard is not
actually connected to the system. This option pre

vents the driver
from being installed in this situation.

bit 1 (NO_RESET)

When this option is given, the atkbd driver will not

reset the keyboard when initializing it. It may be useful for lap

top computers
whose function keys have special functions and these

functions are
forgotten when the keyboard is reset.

bit 2 (ALT_SCANCODESET)

Certain keyboards, such as those on some ThinkPad mod

els, behave
like the old XT keyboard and require this option.

bit 3 (NO_PROBE_TEST)

When this option is given, the atkbd driver will not

test the keyboard port during the probe routine. Some machines

hang during
boot when this test is performed.

EXAMPLES

The atkbd driver requires the keyboard controller atkbdc.

Thus, the kernel configuration file should contain the following lines.

device atkbdc
device atkbd

The following example shows how to set the default, built-in

keymap to
jp.106.kbd.

device atkbdc
options ATKBD_DFLT_KEYMAP
makeoptions ATKBD_DFLT_KEYMAP=jp.106
device atkbd

In both cases, you also need to have following lines in
/boot/device.hints.

hint.atkbdc.0.at="isa"
hint.atkbdc.0.port="0x060"
hint.atkbd.0.at="atkbdc"
hint.atkbd.0.irq="1"

SEE ALSO

kbdcontrol(1), atkbdc(4), pcvt(4), psm(4), syscons(4), load

er(8)

HISTORY

The atkbd driver first appeared in FreeBSD 3.1.

AUTHORS

The atkbd driver was written by Soren Schmidt <sos@FreeB

SD.org> and
Kazutaka Yokota <yokota@FreeBSD.org>. This manual page was

written by
Kazutaka Yokota.

BSD May 21, 1999

BSD