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ATKBD(4)	       FreeBSD 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 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 connected to the AT
     keyboard controller.

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

     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 /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 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.

     bit 3 (NO_PROBE_TEST)
	   When	this option is given, the atkbd	driver will not	test the key-
	   board 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 ker-
     nel 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), psm(4), syscons(4), loader(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.

FreeBSD	10.1			 May 21, 1999			  FreeBSD 10.1

NAME | SYNOPSIS | DESCRIPTION | DRIVER CONFIGURATION | EXAMPLES | SEE ALSO | HISTORY | AUTHORS

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=atkbd&sektion=4&manpath=FreeBSD+7.2-RELEASE>

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