67 lines
2.8 KiB
Groff
67 lines
2.8 KiB
Groff
.\"
|
|
.\" Copyright (c) 1996 Jonathan Stone.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by Jonathan Stone.
|
|
.\" 3. The name of the author may not be used to endorse or promote products
|
|
.\" derived from this software without specific prior written permission
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
.\"
|
|
.\" $Id: lk201.4,v 1.1 1996/08/11 02:29:15 jonathan Exp $
|
|
.\"
|
|
.Dd August 6, 1996
|
|
.Dt LK201 4 pmax
|
|
.Os NetBSD 1.2
|
|
.Sh NAME
|
|
.Nm lk201
|
|
.Nd
|
|
LK-201 keyboard input driver
|
|
.Sh DESCRIPTION
|
|
THe
|
|
.Nm
|
|
driver provides support for the
|
|
.Tn Digital
|
|
.Tn LK-201
|
|
keyboard and successors. This support is automatically configured
|
|
into the kernel, to map input keypress events into ACSII codes.
|
|
There is no way to disable this support.
|
|
.Pp
|
|
The kernel also includes support for an in-kernel ring-buffer
|
|
structure for keypress events and pointer (mouse) events. The
|
|
.Nm fb
|
|
driver redirects mouse and keyboard input into this in-kernel
|
|
structure, and updates the position of a framebuffer cursor sprite to
|
|
track the mouse. This is for compatibility with the
|
|
.Nm qv
|
|
QVSS-style software interface used by X11 on DECstation and Vaxstation
|
|
framebuffers. This design offers significantly better performance
|
|
on the Vaxstation-100 and Vaxstation-II, but makes it impossible
|
|
to use alternative pointer or keyboard devices.
|
|
.Sh BUGS
|
|
The
|
|
.Nm
|
|
support should be re-written as a real driver or as a pseudo-device driver.
|
|
The
|
|
.Nm
|
|
driver should use an in-kernel streams facility, if one existed.
|