Merging upstream version 6.8.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 137 deletions

diff --git a/man4/lp.4 b/man4/lp.4
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--- a/man4/lp.4
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-'\" t
-.\" Copyright (c) Michael Haardt (michael@cantor.informatik.rwth-aachen.de),
-.\"     Sun Jan 15 19:16:33 1995
-.\"
-.\" SPDX-License-Identifier: GPL-2.0-or-later
-.\"
-.\" Modified, Sun Feb 26 15:02:58 1995, faith@cs.unc.edu
-.TH lp 4 2023-02-05 "Linux man-pages 6.7"
-.SH NAME
-lp \- line printer devices
-.SH SYNOPSIS
-.nf
-.B #include <linux/lp.h>
-.fi
-.SH CONFIGURATION
-\fBlp\fP[0\[en]2] are character devices for the parallel line printers;
-they have major number 6 and minor number 0\[en]2.
-The minor numbers
-correspond to the printer port base addresses 0x03bc, 0x0378, and 0x0278.
-Usually they have mode 220 and are owned by user
-.I root
-and group
-.IR lp .
-You can use printer ports either with polling or with interrupts.
-Interrupts are recommended when high traffic is expected, for example,
-for laser printers.
-For typical dot matrix printers, polling will usually be enough.
-The default is polling.
-.SH DESCRIPTION
-The following
-.BR ioctl (2)
-calls are supported:
-.TP
-.BR "int ioctl(int " fd ", LPTIME, int " arg )
-Sets the amount of time that the driver sleeps before rechecking the printer
-when the printer's buffer appears to be filled to
-.IR arg .
-If you have a fast printer, decrease this number;
-if you have a slow printer, then increase it.
-This is in hundredths of a second, the default 2
-being 0.02 seconds.
-It influences only the polling driver.
-.TP
-.BR "int ioctl(int " fd ", LPCHAR, int " arg )
-Sets the maximum number of busy-wait iterations which the polling driver does
-while waiting for the printer to get ready for receiving a character to
-.IR arg .
-If printing is too slow, increase this number; if the
-system gets too slow, decrease this number.
-The default is 1000.
-It influences only the polling driver.
-.TP
-.BR "int ioctl(int " fd ", LPABORT, int " arg )
-If
-.I arg
-is 0, the printer driver will retry on errors, otherwise
-it will abort.
-The default is 0.
-.TP
-.BR "int ioctl(int " fd ", LPABORTOPEN, int " arg )
-If
-.I arg
-is 0,
-.BR open (2)
-will be aborted on error, otherwise error will be ignored.
-The default is to ignore it.
-.TP
-.BR "int ioctl(int " fd ", LPCAREFUL, int " arg )
-If
-.I arg
-is 0, then the out-of-paper, offline, and error signals are
-required to be false on all writes, otherwise they are ignored.
-The default is to ignore them.
-.TP
-.BR "int ioctl(int " fd ", LPWAIT, int " arg )
-Sets the number of busy waiting iterations to wait before strobing the
-printer to accept a just-written character, and the number of iterations to
-wait before turning the strobe off again,
-to
-.IR arg .
-The specification says this time should be 0.5
-microseconds, but experience has shown the delay caused by the code is
-already enough.
-For that reason, the default value is 0.
-.\" FIXME . Actually, since Linux 2.2, the default is 1
-This is used for both the polling and the interrupt driver.
-.TP
-.BR "int ioctl(int " fd ", LPSETIRQ, int " arg )
-This
-.BR ioctl (2)
-requires superuser privileges.
-It takes an
-.I int
-containing the new IRQ as argument.
-As a side effect, the printer will be reset.
-When
-.I arg
-is 0, the polling driver will be used, which is also default.
-.TP
-.BR "int ioctl(int " fd ", LPGETIRQ, int *" arg )
-Stores the currently used IRQ in
-.IR arg .
-.TP
-.BR "int ioctl(int " fd ", LPGETSTATUS, int *" arg )
-Stores the value of the status port in
-.IR arg .
-The bits have the following meaning:
-.TS
-l l.
-LP_PBUSY	inverted busy input, active high
-LP_PACK	unchanged acknowledge input, active low
-LP_POUTPA	unchanged out-of-paper input, active high
-LP_PSELECD	unchanged selected input, active high
-LP_PERRORP	unchanged error input, active low
-.TE
-.IP
-Refer to your printer manual for the meaning of the signals.
-Note that undocumented bits may also be set, depending on your printer.
-.TP
-.BR "int ioctl(int " fd ", LPRESET)"
-Resets the printer.
-No argument is used.
-.SH FILES
-.I /dev/lp*
-.\" .SH AUTHORS
-.\" The printer driver was originally written by Jim Weigand and Linus
-.\" Torvalds.
-.\" It was further improved by Michael K.\& Johnson.
-.\" The interrupt code was written by Nigel Gamble.
-.\" Alan Cox modularized it.
-.\" LPCAREFUL, LPABORT, LPGETSTATUS were added by Chris Metcalf.
-.SH SEE ALSO
-.BR chmod (1),
-.BR chown (1),
-.BR mknod (1),
-.BR lpcntl (8),
-.BR tunelp (8)