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1.1 root 1: .\" Copyright (c) 1990 The Regents of the University of California.
2: .\" All rights reserved.
3: .\"
4: .\" This code is derived from software contributed to Berkeley by
5: .\" the Systems Programming Group of the University of Utah Computer
6: .\" Science Department.
7: .\"
8: .\" Redistribution and use in source and binary forms are permitted provided
9: .\" that: (1) source distributions retain this entire copyright notice and
10: .\" comment, and (2) distributions including binaries display the following
11: .\" acknowledgement: ``This product includes software developed by the
12: .\" University of California, Berkeley and its contributors'' in the
13: .\" documentation or other materials provided with the distribution and in
14: .\" all advertising materials mentioning features or use of this software.
15: .\" Neither the name of the University nor the names of its contributors may
16: .\" be used to endorse or promote products derived from this software without
17: .\" specific prior written permission.
18: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
19: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
20: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
21: .\"
22: .\" @(#)ppi.4 5.1 (Berkeley) 6/29/90
23: .\"
24: .TH PPI 4 "June 29, 1990"
25: .UC 7
26: .SH NAME
27: ppi \- HPIB printer/plotter interface
28: .SH SYNOPSIS
29: .B "device ppi0 at hpib0 slave 5"
30: .PP
31: .B "crw-rw-rw- 1 root 11, 0 Dec 21 11:22 /dev/ppi"
32: .SH DESCRIPTION
33: The ppi interface provides a means of communication with HP-IB
34: printers and plotters.
35: .PP
36: Special files
37: .I ppi0
38: through
39: .I ppi7
40: are used to access the devices, with the digit at the end
41: of the filename referring to the bus address of the device.
42: Current versions of the autoconf code can not probe for these
43: devices, so the device entry in the configuration file must be
44: fully qualified.
45: .SH DIAGNOSTICS
46: None.
47: .SH BUGS
48: This driver is very primitive, it handshakes data out byte by byte.
49: It should use DMA if possible.
50: .SH "SEE ALSO"
51: hpib(4).
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