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ATKBD(4)	      DragonFly Kernel Interfaces Manual	      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 atkbd0 at atkbdc? 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 connected to the AT keyboard controller. This driver is required for the syscons(4) console driver. There can be only one atkbd device defined in the kernel configuration file. This device also requires the atkbdc keyboard controller to be present. The irq number must always be 1; there is no provision of changing the number. Function Keys The AT keyboard has a number of function keys. They are numbered as fol- lows 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 NumLock) 54 Numpad 5 (without NumLock) 55 Right Arrow and Numpad 6 (without NumLock) 56 Numpad + 57 End and Numpad 1 (without NumLock) 58 Down Arrow and Numpad 2 (without NumLock) 59 Page Down and Numpad 3 (without NumLock) 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 prevent the user from changing key assignment. Driver Flags The atkbd driver accepts the following driver flags. They can be set either in the kernel configuration file (see config(8)), or else in the User Configuration Menu at boot time (see boot(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 prevents the driver from being installed in this situation. bit 1 (NO_RESET) When this option is given, the atkbd driver will not reset the key- board when initializing it. It may be useful for laptop 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 models, behave like the old XT keyboard and require this option.

EXAMPLES

The atkbd driver requires the keyboard controller atkbdc. Thus, the ker- nel configuration file should contain the following lines. device atkbdc0 at isa device atkbd0 at atkbdc? irq 1 The following example shows how to set the default, built-in keymap to jp.106.kbd. options ATKBD_DFLT_KEYMAP makeoptions ATKBD_DFLT_KEYMAP=jp.106 device atkbd0 at atkbdc? irq 1

SEE ALSO

kbdcontrol(1), atkbdc(4), psm(4), syscons(4), boot(8), config(8)

HISTORY

The atkbd driver first appeared in FreeBSD 3.1.

AUTHORS

The atkbd driver was written by Soren Schmidt <sos@FreeBSD.org> and Kazutaka Yokota <yokota@FreeBSD.org>. This manual page was written by Kazutaka Yokota. DragonFly 4.1 May 21, 1999 DragonFly 4.1