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Remove duplicate 'is' reported by Arto Huusko in misc/18048.

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wiz 2002-08-23 12:04:39 +00:00
parent c4fdfebd38
commit d4a8d9ed9e
1 changed files with 21 additions and 13 deletions
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34
share/man/man4/tty.4
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@ -1,4 +1,4 @@
.\" $NetBSD: tty.4,v 1.15 2002/05/20 13:50:26 yamt Exp $
.\" $NetBSD: tty.4,v 1.16 2002/08/23 12:04:39 wiz Exp $
.\"
.\" Copyright (c) 1991, 1992, 1993
.\" The Regents of the University of California. All rights reserved.
@ -46,17 +46,25 @@ This section describes the interface to the terminal drivers
in the system.
.Ss Terminal Special Files
Each hardware terminal port on the system usually has two terminal special
device files associated with it in the directory ``/dev/'' (for
example, ``/dev/tty03'' and ``/dev/dty03'').
device files associated with it in the directory
.Pa /dev/
(for example,
.Pa /dev/tty03
and
.Pa /dev/dty03 ) .
.Pp
The ``/dev/ttyXX'' special file is used for dialin modems and terminals.
The
.Pa /dev/ttyXX
special file is used for dialin modems and terminals.
When a user logs into
the system on one of these hardware terminal ports, the system has already
opened the associated device and prepared the line for normal interactive
use (see
.Xr getty 8 . )
.Xr getty 8 ) .
.Pp
The ``/dev/dtyXX'' special file is a SunOS-compatible dialout device. Unlike
The
.Pa /dev/dtyXX
special file is a SunOS-compatible dialout device. Unlike
the dialin device, opening the dialout device never blocks. If the
corresponding dialin device is already opened (not blocked in the open waiting
for carrier), then the dialout open will fail immediately; otherwise it will
@ -85,7 +93,7 @@ these terminal special files (see
.Pp
When an interactive user logs in, the system prepares the line to
behave in a certain way (called a
.Em "line discipline" ) ,
.Em line discipline ) ,
the particular details of which is described in
.Xr stty 1
at the command level, and in
@ -102,9 +110,9 @@ A terminal file is used like any other file in the system in that
it can be opened, read, and written to using standard system
calls. For each existing terminal file, there is a software processing module
called a
.Em "line discipline"
is associated with it. The
.Em "line discipline"
.Em line discipline
associated with it. The
.Em line discipline
essentially glues the low level device driver code with the high
level generic interface routines (such as
.Xr read 2
@ -113,7 +121,7 @@ and
and is responsible for implementing the semantics associated
with the device. When a terminal file is first opened by a program,
the default
.Em "line discipline"
.Em line discipline
called the
.Dv termios
line discipline is associated with the file. This is the primary
@ -128,7 +136,7 @@ semantics.
The operations described here
generally represent features common
across all
.Em "line disciplines" ,
.Em line disciplines ,
however some of these calls may not
make sense in conjunction with a line discipline other than
.Dv termios ,
@ -158,7 +166,7 @@ name of the request, a description of its purpose, and the typed
parameter (if any)
are listed. For example, the first entry says
.Pp
.D1 Em "TIOCSLINED char name[32]"
.D1 Em TIOCSLINED char name[32]
.Pp
and would be called on the terminal associated with
file descriptor zero by the following code fragment: