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.\" Copyright (c) 1990 The Regents of the University of California.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to Berkeley by
.\" the Systems Programming Group of the University of Utah Computer
.\" Science Department.
.\"
.\" Redistribution and use in source and binary forms are permitted provided
.\" that: (1) source distributions retain this entire copyright notice and
.\" comment, and (2) distributions including binaries display the following
.\" acknowledgement:  ``This product includes software developed by the
.\" University of California, Berkeley and its contributors'' in the
.\" documentation or other materials provided with the distribution and in
.\" all advertising materials mentioning features or use of this software.
.\" Neither the name of the University nor the names of its contributors may
.\" be used to endorse or promote products derived from this software without
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.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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.\"	@(#)ppi.4	5.1 (Berkeley) 6/29/90
.\"
.TH PPI 4 "June 29, 1990"
.UC 7
.SH NAME
ppi \- HPIB printer/plotter interface
.SH SYNOPSIS
.B "device ppi0 at hpib0 slave 5"
.PP
.B "crw-rw-rw-  1 root      11,   0 Dec 21 11:22 /dev/ppi"
.SH DESCRIPTION
The ppi interface provides a means of communication with HP-IB
printers and plotters.
.PP
Special files
.I ppi0
through
.I ppi7
are used to access the devices, with the digit at the end
of the filename referring to the bus address of the device.
Current versions of the autoconf code can not probe for these
devices, so the device entry in the configuration file must be
fully qualified.
.SH DIAGNOSTICS
None.
.SH BUGS
This driver is very primitive, it handshakes data out byte by byte.
It should use DMA if possible.
.SH "SEE ALSO"
hpib(4).

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