94 lines
3.7 KiB
Groff
94 lines
3.7 KiB
Groff
.\" $NetBSD: pms.4,v 1.15 2003/05/14 12:20:01 wiz Exp $
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.\"
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.\" Copyright (c) 1993 Christopher G. Demetriou
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed for the
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.\" NetBSD Project. See http://www.NetBSD.org/ for
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.\" information about NetBSD.
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.\" 4. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
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.\"
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.Dd May 14, 2003
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.Dt PMS 4
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.Os
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.Sh NAME
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.Nm pms
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.Nd PS/2 auxiliary port mouse driver
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.Sh SYNOPSIS
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.Cd pckbc* at isa?
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.Cd pms* at pckbc?
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.Cd wsmouse* at pms?
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.Pp
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.Cd options PMS_DISABLE_POWERHOOK
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.Sh DESCRIPTION
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The
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.Nm
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driver provides an interface to PS/2 auxiliary port mice within the
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.Xr wscons 4
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framework. Parent device in terms of the autoconfiguration framework is
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.Xr pckbc 4 ,
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the PC keyboard controller.
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.Dq pms
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is a generic driver which supports mice using common variants of the PS/2
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protocol, including wheel mice of the
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.Dq IntelliMouse
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breed. Wheel movements are mapped to a third (z-) axis. The driver is
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believed to work with both 3-button and 5-button mice with scroll wheels.
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Mice which use other protocol extensions are not currently supported, but
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might be if protocol documentation could be found.
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Mouse related data are accessed by
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.Xr wsmouse 4
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devices.
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.Pp
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The
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.Nm
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driver has been updated to attempt to renegotiate mouse protocol after seeing
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suspicious or defective mouse protocol packets, or unusual delays in the
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middle of a packet; this should improve the chances that a mouse will recover
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after being switched away or reset (for instance, by a console switch).
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.Pp
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The
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.Va PMS_DISABLE_POWERHOOK
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kernel option disables PS/2 reset on resume.
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.Sh SEE ALSO
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.Xr pckbc 4 ,
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.Xr ums 4 ,
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.Xr wsmouse 4
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.Sh AUTHORS
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The
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.Nm
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driver was originally written by Christopher G. Demetriou. The changes to
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merge the
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.Dq IntelliMouse
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protocol in, and reset the mouse in the event of protocol problems, were
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contributed by Peter Seebach. Special thanks to Ray Trent, at Synaptics,
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who contributed valuable insight into how to identify bogus mouse data.
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.Sh BUGS
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It is possible for the driver to mistakenly negotiate the non-scroll-wheel
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protocol, after which it is unlikely to recover until the device is closed
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and reopened.
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