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1.\"-
2.\" Copyright (c) 2001 Miodrag Vallat.
3.\" Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org>
4.\" All rights reserved.
5.\"
6.\" Redistribution and use in source and binary forms, with or without
7.\" modification, are permitted provided that the following conditions
8.\" are met:

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19.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25.\"
26.\" from: OpenBSD: pcons.4,v 1.4 2003/06/02 16:16:26 miod Exp
27.\" $FreeBSD: head/share/man/man4/man4.sparc64/ofw_console.4 208027 2010-05-13 12:07:55Z uqs $
28.\"
29.Dd June 18, 2005
30.Dt OFW_CONSOLE 4 sparc64
31.Os
32.Sh NAME
33.Nm ofw_console
34.Nd "Open Firmware console"
35.Sh SYNOPSIS

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73.It Pa /dev/console
74.It Pa /dev/keyboard
75terminal input device in case the console input device is the keyboard
76.It Pa /dev/screen
77terminal output device in case the console output device is the screen
78.It Pa /dev/tty[a-z]
79terminal device in case both the console input and output device is tty[a-z]
80.El
81.Sh SEE ALSO
82.Xr creator 4 ,
83.Xr machfb 4 ,
84.Xr syscons 4 ,
85.Xr uart 4 ,
86.Xr eeprom 8
87.Sh HISTORY
88The
89.Nm
90driver first appeared in
91.Fx 5.0 .
92.Sh AUTHORS
93The
94.Nm
95driver was written by
96.An "Benno Rice" Aq benno@FreeBSD.org .
97.Sh CAVEATS
98Since the Open Firmware will handle BREAK
99(or Stop-A)
100sequences before
101.Nm ,
102the preferred way to enter
103.Xr ddb 4
104when using
105.Nm
106is to include
107.Cd "options ALT_BREAK_TO_DEBUGGER"
108in a ddb-enabled kernel, and enter the alternate BREAK sequence
109(RETURN TILDE CTRL-b).
110.Sh BUGS
111The
112.Nm
113driver
114is not a real
115.Xr tty 4
116driver and is not MPSAFE.
117The
118.Nm
119driver also does not attach to the hardware resources it actually talks to.
120Therefore it cannot be included in the kernel together with real console
121hardware drivers
122like
123.Xr creator 4 ,
124.Xr machfb 4
125and
126.Xr uart 4 .