Copyright (c) 1999
Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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$Id: atkbd.4,v 1.2 1999/02/10 14:25:03 yokota Exp $

.Dd February 9, 1999 .Dt ATKBD 4 .Os FreeBSD .Sh NAME .Nm atkbd .Nd the AT keyboard interface .Sh SYNOPSIS .Cd "device atkbd0 at atkbdc? tty irq 1" .Sh DESCRIPTION The .Nm driver, together with the .Nm atkbdc driver, provides access to the AT 84 keyboard or the AT enhanced keyboard which is connected to the AT keyboard controller.

p This driver is required for the console drivers .Xr syscons 4 and .Xr pcvt 4 .

p There can be only one .Nm device defined in the kernel configuration file. This device also requires the .Nm atkbdc keyboard controller to be present. The .Em irq number must always be 1; there is no provision of changing the number. .Sh DRIVER CONFIGURATION .Ss Kernel Configuration Options
.Ss Driver Flags The .Nm driver accepts the following driver flags. They can be set either in the kernel configuration file

q see Xr config 8 , or else in the User Configuration Menu at boot time

q see Xr boot 8 . l -tag -width FAIL t bit 0 (FAIL_IF_NO_KBD) By default the .Nm 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. t bit 1 (NO_RESET) When this option is given, the .Nm driver will not reset the keyboard 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. t bit 2 (ALT_SCANCODESET) Certain keyboards, such as those on some ThinkPad models, behave like the old XT keyboard and require this option. .El .Sh FILES
.Sh EXAMPLE
.Sh DIAGNOSTICS
.Sh CAVEATS
.Sh BUGS
.Sh SEE ALSO .Xr atkbdc 4 , .Xr pcvt 4 , .Xr psm 4 , .Xr syscons 4 , .Xr boot 8 , .Xr config 8 . .Sh HISTORY The .Nm driver first appeared in .Fx 3.1 . .Sh AUTHORS The .Nm driver was written by .An S�ren Schmidt Aq sos@FreeBSD.org and .An Kazutaka Yokota Aq yokota@FreeBSD.org . This manual page was written by .An Kazutaka Yokota .