91 lines
2.2 KiB
Groff
91 lines
2.2 KiB
Groff
.\"
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.\" lptcontrol - a utility for manipulating the lpt driver
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" $FreeBSD$
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.Dd October 1, 2004
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.Dt LPTCONTROL 8
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.Os
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.Sh NAME
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.Nm lptcontrol
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.Nd a utility for manipulating the lpt printer driver
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.Sh SYNOPSIS
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.Nm
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.Fl e | i | p | s
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.Op Fl d Ar control_device
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.Sh DESCRIPTION
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The
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.Nm
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utility is used to set either the interrupt-driven, extended, standard,
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or polling mode of individual
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.Xr lpt 4
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devices.
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When a printer is switched from
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a mode to another, this change will only take effect
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the next time the device is opened.
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.Pp
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Extended mode is anything the parallel port interface can support.
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For an
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ECP/ISA parallel port, it may be FIFO+DMA or ECP.
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.Pp
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The following command line options are supported:
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.Bl -tag -width indent
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.It Fl e
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Turn on extended mode.
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.It Fl i
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Turn on interrupt-driven mode.
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.It Fl p
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Turn on polled mode.
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.It Fl s
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Turn on standard mode, i.e., turn off extended mode.
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.It Fl d Ar control_device
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Set the mode of the printer control device specified by
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.Ar control_device .
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The default value for
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.Ar control_device
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is
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.Pa /dev/lpt0.ctl .
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.El
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.Pp
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One of
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.Fl e , i , p
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or
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.Fl s
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must be specified.
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.Sh FILES
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.Bl -tag -width /sys/i386/conf/GENERIC -compact
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.It Pa /dev/lpt?
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printer devices
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.It Pa /dev/lpt?.ctl
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printer control devices
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.It Pa /sys/i386/conf/GENERIC
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kernel configuration file
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.It Pa /boot/device.hints
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device hints for the parallel port chipset driver,
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.Xr ppc 4
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.El
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.Sh SEE ALSO
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.Xr lpt 4 ,
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.Xr ppc 4 ,
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.Xr device.hints 5
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.Sh HISTORY
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The
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.Nm
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utility
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first appeared in
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.Fx 1.1.5
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.Sh AUTHORS
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.An Geoffrey M. Rehmet
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.Sh BUGS
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The control device name should never have been an option,
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but should have been an optional argument.
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Because of this, a single argument is treated as a device name.
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