1.\" $Id: vkbd.4,v 1.4 2004/11/16 16:49:39 max Exp $
2.\" $FreeBSD: head/share/man/man4/vkbd.4 206622 2010-04-14 19:08:06Z uqs $
3.\"
4.Dd August 12, 2004
5.Dt VKBD 4
6.Os
7.Sh NAME
8.Nm vkbd
9.Nd the virtual AT keyboard interface
10.Sh SYNOPSIS

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125.Pp
126On the last close of the control device, the virtual AT keyboard is removed.
127All queued scan codes are thrown away.
128.Sh SEE ALSO
129.Xr kbdcontrol 1 ,
130.Xr atkbdc 4 ,
131.Xr psm 4 ,
132.Xr syscons 4
133.Sh CAVEATS
134The
135.Nm
136interface is a software loopback mechanism, and, thus
137.Xr ddb 4
138will not work with it.
139Current implementation of the
140.Xr syscons 4
141driver can accept input from only one keyboard, even if it is virtual.
142Thus it is not possible to have both wired and virtual keyboard to be active
143at the same time.
144It is, however, in principal possible to obtain AT scan
145codes from the different sources and write them into the same virtual keyboard.
146The virtual keyboard state synchronization is the user's responsibility.
147.Sh HISTORY
148The
149.Nm
150module was implemented in
151.Fx 6.0 .
152.Sh AUTHORS
153.An Maksim Yevmenkin Aq m_evmenkin@yahoo.com