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Document PMS_ELANTECH_TOUCHPAD option and hw.elantech.* sysctls, bump date.

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jmcneill 2008-12-14 00:52:26 +00:00
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34
share/man/man4/pms.4
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@ -1,4 +1,4 @@
.\" $NetBSD: pms.4,v 1.21 2005/01/18 13:42:37 wiz Exp $
.\" $NetBSD: pms.4,v 1.22 2008/12/14 00:52:26 jmcneill Exp $
.\"
.\" Copyright (c) 1993 Christopher G. Demetriou
.\" All rights reserved.
@ -32,7 +32,7 @@
.\"
.\" <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
.\"
.Dd January 18, 2005
.Dd December 13, 2008
.Dt PMS 4
.Os
.Sh NAME
@ -45,6 +45,7 @@
.Pp
.Cd options PMS_DISABLE_POWERHOOK
.Cd options PMS_SYNAPTICS_TOUCHPAD
.Cd options PMS_ELANTECH_TOUCHPAD
.Sh DESCRIPTION
The
.Nm
@ -82,14 +83,18 @@ In addition, the
.Nm
driver supports the
.Dq Synaptics
touchpad in native mode, enabled with the
and
.Dq Elantech
touchpads in native mode, enabled with the
.Va PMS_SYNAPTICS_TOUCHPAD
kernel option.
and
.Va PMS_ELANTECH_TOUCHPAD
kernel options.
This allows the driver to take advantage of extra
features available on Synaptics Touchpads.
features available on Synaptics and Elantech Touchpads.
The following
.Xr sysctl 8
variables control the touchpad's behavior:
variables control behavior of Synaptics touchpads:
.Bl -tag
.It Dv hw.synaptics.up_down_emulation
If the touchpad reports the existence of Up/Down buttons, this value
@ -144,6 +149,20 @@ event (default 32).
Movements of less than this value (in Synaptics coordinates) are
ignored (default 4).
.El
.Pp
The following
.Xr sysctl 8
variables control behavior of Elantech touchpads:
.Bl -tag
.It Dv hw.elantech.xy_precision_shift
.It Dv hw.elantech.z_precision_shift
Increased values improve the accuracy of X, Y, and Z-axis reporting
at the expense of slower mouse movement (default 2 for xy,
and 3 for z).
.El
.Pp
For Elantech touchpads, the Z-axis is emulated using two-finger
Y-axis reporting.
.Sh SEE ALSO
.Xr pckbc 4 ,
.Xr ums 4 ,
@ -161,6 +180,9 @@ insight into how to identify bogus mouse data.
The changes to add
.Dq Synaptics
pad support were by Ales Krenek, Kentaro A. Kurahone, and Steve C. Woodford.
The changes to add
.Dq Elantech
pad support were by Jared D. McNeill.
.Sh BUGS
It is possible for the driver to mistakenly negotiate the non-scroll-wheel
protocol, after which it is unlikely to recover until the device is closed