freebsd-dev/share/man/man4/man4.i386/lpt.4
Geoff Rehmet bc3919a9be Update lpt(4) man page to reflect recent changes to the lpt device driver.
(also point out that lpa is now defunct.)
1994-04-06 20:21:33 +00:00

74 lines
2.8 KiB
Groff

.\"
.\" Copyright (c) 1993 Christopher G. Demetriou
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.\" This product includes software developed by Christopher G. Demetriou.
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.\" from: lpt.4,v 1.1 1993/08/06 10:34:12 cgd Exp
.\"
.Dd August 28, 1993
.Dt LPT 4 i386
.Os FreeBSD
.Sh NAME
.Nm lpt
.Nd
Parallel port driver
.Sh SYNOPSIS
For interrupt-driven ports:
.Cd "device lpt0 at isa? port" \&"IO_LPT1\&" tty irq 7 vector lptintr
.Cd "device lpt1 at isa? port" \&"IO_LPT2\&" tty irq 7 vector lptintr
.Cd "device lpt2 at isa? port" \&"IO_LPT3\&" tty irq 7 vector lptintr
.sp
For BIOS-probed ports:
.Cd "device lpt0 at isa? port? tty irq 7 vector lptintr"
.sp
For polled ports:
.Cd "device lpt0 at isa? port? tty"
.Cd "device lpt1 at isa? port" \&"IO_LPT2\&" tty
.Sh DESCRIPTION
This driver provides access to parallel ports.
.sp
The driver can be configured either to be either interrupt-driven, or
to poll the printer. Ports that are configured to be
interrupt-driven can be switched to polled mode by using the
.Xr lptcontrol 1
command.
.sp
This driver replaces the functionality of the
.Xr lpa 4
driver, which is now defunct.
.Sh FILES
.Bl -tag -width Pa -compact
.It Pa /dev/lpt0
first parallel port driver
.El
.Sh SEE ALSO
.Xr lptcontrol 1
.Sh BUGS
There are lots of them, especially in cheap parallel port implementations.
.Pp
This driver could still stand a rewrite.