Copyright (c) 1999
Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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$Id: $

.Dd February 6, 1999 .Dt ATKBD 4 i386 .Os FreeBSD .Sh NAME .Nm atkbd .Nd the AT keyboard interface .Sh SYNOPSIS .Cd "device atkbd0 at isa? 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 in the system and the keyboard controller .Nm atkbdc must be configured in the kernel too. .Sh DRIVER CONFIGURATION .Ss Kernel Configuration Options
.Ss Driver Flags The .Nm driver accepts the following driver flags. Set them in the kernel configuration file or in the User Configuration Menu at the boot time

q see Xr boot 8 . l -tag -width MOUSE 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 makes the driver not install in such 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 features and these features are somewhat lost 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 . .Sh HISTORY The .Nm driver first appeared in .Fx 3.1 . .Sh AUTHORS The .Nm driver is based on keyboard I/O routines in the console driver code written by .An S�ren Schmidt Aq sos@FreeBSD.org . This manual page was written by .An Kazutaka Yokota Aq yokota@FreeBSD.org .