| lp.4 (68962) | lp.4 (70466) |
|---|---|
| 1.\" -*- nroff -*- 2.\" 3.\" Copyright (c) 1996 A.R.Gordon, andrew.gordon@net-tel.co.uk 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: --- 18 unchanged lines hidden (view full) --- 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" Id: man4.i386/lp.4,v 1.9 1999/02/14 12:06:16 nsouch Exp | 1.\" -*- nroff -*- 2.\" 3.\" Copyright (c) 1996 A.R.Gordon, andrew.gordon@net-tel.co.uk 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: --- 18 unchanged lines hidden (view full) --- 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" Id: man4.i386/lp.4,v 1.9 1999/02/14 12:06:16 nsouch Exp |
| 35.\" $FreeBSD: head/share/man/man4/lp.4 68962 2000-11-20 18:41:33Z ru $ | 35.\" $FreeBSD: head/share/man/man4/lp.4 70466 2000-12-29 09:18:45Z ru $ |
| 36.\" 37.Dd March 4, 1996 38.Os 39.Dt LP 4 40.Sh NAME 41.Nm lp 42.Nd printer port Internet Protocol driver 43.Sh SYNOPSIS --- 106 unchanged lines hidden (view full) --- 150the data lines (ie. writing the ones-complement of the previous nibble 151to be transmitted) without changing the state of the handshake. 152.Pp 153Note that the end-of-packet marker assumes that the handshake signal and 154the data-out bits can be written in a single instruction - otherwise 155certain byte values in the packet data would falsely be interpreted 156as end-of-packet. This is not a problem for the PC printer port, 157but requires care when implementing this protocol on other equipment. | 36.\" 37.Dd March 4, 1996 38.Os 39.Dt LP 4 40.Sh NAME 41.Nm lp 42.Nd printer port Internet Protocol driver 43.Sh SYNOPSIS --- 106 unchanged lines hidden (view full) --- 150the data lines (ie. writing the ones-complement of the previous nibble 151to be transmitted) without changing the state of the handshake. 152.Pp 153Note that the end-of-packet marker assumes that the handshake signal and 154the data-out bits can be written in a single instruction - otherwise 155certain byte values in the packet data would falsely be interpreted 156as end-of-packet. This is not a problem for the PC printer port, 157but requires care when implementing this protocol on other equipment. |
| 158 | |
| 159.Ss Crynwr/Linux CLPIP mode 160The signal lines are used as follows: 161.Bl -tag -width dataxxxx(Pinxx) 162.It Em Data0 (Pin 2) 163Data out, bit 0. 164.It Em Data1 (Pin 3) 165Data out, bit 1. 166.It Em Data2 (Pin 4) --- 68 unchanged lines hidden --- | 158.Ss Crynwr/Linux CLPIP mode 159The signal lines are used as follows: 160.Bl -tag -width dataxxxx(Pinxx) 161.It Em Data0 (Pin 2) 162Data out, bit 0. 163.It Em Data1 (Pin 3) 164Data out, bit 1. 165.It Em Data2 (Pin 4) --- 68 unchanged lines hidden --- |