3 .\" Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
4 .\" All rights reserved.
6 .\" Redistribution and use in source and binary forms, with or without
7 .\" modification, are permitted provided that the following conditions
9 .\" 1. Redistributions of source code must retain the above copyright
10 .\" notice, this list of conditions and the following disclaimer as
11 .\" the first lines of this file unmodified.
12 .\" 2. Redistributions in binary form must reproduce the above copyright
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14 .\" documentation and/or other materials provided with the distribution.
16 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 .\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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27 .\" $FreeBSD: src/share/man/man4/atkbdc.4,v 1.9.2.4 2001/08/17 13:08:37 ru Exp $
34 .Nd the AT keyboard controller interface
36 .Cd "options KBD_RESETDELAY=N"
37 .Cd "options KBD_MAXWAIT=N"
38 .Cd "options KBDIO_DEBUG=N"
39 .Cd "device atkbdc0 at isa? port IO_KBD"
41 The keyboard controller
43 provides I/O services for the AT keyboard and PS/2 mouse style
45 This controller is required for the keyboard driver
47 and the PS/2 pointing device driver
52 device configured in the system.
53 .Sh DRIVER CONFIGURATION
54 .Ss Kernel Configuration Options
55 The following kernel configuration options can be used to control the
58 They may be set in the kernel configuration file
62 .It Em KBD_RESETDELAY=X , KBD_MAXWAIT=Y
65 and the pointing device driver
69 driver to reset these devices during the boot process.
70 It sometimes takes a long time before these devices respond to
72 These options control how long the
75 wait before eventually giving up -- the driver will wait
80 If the drivers seem unable to detect
81 devices, you may want to increase these values.
82 The default values are
89 Sets the debug level to
91 The default value is zero, which suppresses all debugging output.
106 driver first appeared in
108 It is based on the kbdio module in
111 The kbdio module, the
113 driver and this manual page were written by
114 .An Kazutaka Yokota Aq Mt yokota@FreeBSD.org .