<commit_before>.\" Copyright (c) 1998, <NAME>
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\"
.Dd October 25, 1998
.Dt LPBB 4
.Os FreeBSD
.Sh NAME
.Nm lpbb
.Nd
Parallel port I2C bit-banging interface
.Sh SYNOPSIS
.Cd "controller iicbus"
.Cd "controller iicbb0"
.Pp
.Cd "device lpbb0 at ppbus?"
.Cd "device iic0 at iicbus?"
.Sh DESCRIPTION
The
.Em lpbb
driver supports the Philips official I2C parallel bit-banging interface.
.Pp
 
                                         LS05 pin 14 (Vcc) o      -------
                                                           |      |     |
            +--+--+---------------------+--+--+------------+------+-o 1 |
            |  |  |                     |  |  |           ===.1uF | +5V |
  -------- [R][R][R] 3x10K       3x10K [R][R][R]   LS05    |      |     |
  |      |  |  |  |                     |  |  |    pin 7 o-+------+-o 2 |
  | 12 o-+--+  |  |   3|\\ 4             |  |  |    (Gnd)          | GND |
  | 17 o-+-----|--|----| >o-------------+--|--|--------------+    |     |
  |      |     |  |    |/        8 /|9     |  |     10 /|11  +----+-o 3 |
  | 15 o-+-----+--|--------------o< |------+--|------o< |----+    | SCL |
  |      |        |   1|\\ 2        \\|         |        \\|         |     |
  |  9 o-+--------|----| >o-------------------+--------------+----+-o 4 |
  |      |        |    |/                            6 /|5   |    | SDA |
  | 11 o-+--------+----------------------------------o< |----+    -------
  | 10 o-+-+                                           \\|          4-pin
  | 13 o-+-+--oGND                                              Connector
  | 25 o-+-+      ------------------ Part List --------------------------
  --------        | 1 - .1 uF capacitor   | 6 - 10K 5% resistors        |
  25-pin male D   | 1 - 4-pin connector   | 1 - 25-pin male D connector |
  connector to PC | 1 - 74LS05 open collector hex inverter              |
  printer port    ------------------------------------------------------- 
.Pp
.Sh SEE ALSO
.Xr iicbus 4 ,
.Xr iicbb 4 ,
.Xr ppbus 4
.Sh HISTORY
The
.Nm
manual page first appeared in
.Fx 3.0 .
.Sh AUTHOR
This
manual page was written by
.An <NAME> .<commit_msg>Fix docs/10737<commit_after>.\" Copyright (c) 1998, <NAME>
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\"
.Dd October 25, 1998
.Dt LPBB 4
.Os FreeBSD
.Sh NAME
.Nm lpbb
.Nd
Parallel port I2C bit-banging interface
.Sh SYNOPSIS
.Cd "controller iicbus"
.Cd "controller iicbb0"
.Pp
.Cd "device lpbb0 at ppbus?"
.Cd "device iic0 at iicbus?"
.Sh DESCRIPTION
The
.Em lpbb
driver supports the Philips official I2C parallel bit-banging interface.
.Pp
.Bd -literal
 
                                         LS05 pin 14 (Vcc) o      -------
                                                           |      |     |
            +--+--+---------------------+--+--+------------+------+-o 1 |
            |  |  |                     |  |  |           ===.1uF | +5V |
  -------- [R][R][R] 3x10K       3x10K [R][R][R]   LS05    |      |     |
  |      |  |  |  |                     |  |  |    pin 7 o-+------+-o 2 |
  | 12 o-+--+  |  |   3|\\ 4             |  |  |    (Gnd)          | GND |
  | 17 o-+-----|--|----| >o-------------+--|--|--------------+    |     |
  |      |     |  |    |/        8 /|9     |  |     10 /|11  +----+-o 3 |
  | 15 o-+-----+--|--------------o< |------+--|------o< |----+    | SCL |
  |      |        |   1|\\ 2        \\|         |        \\|         |     |
  |  9 o-+--------|----| >o-------------------+--------------+----+-o 4 |
  |      |        |    |/                            6 /|5   |    | SDA |
  | 11 o-+--------+----------------------------------o< |----+    -------
  | 10 o-+-+                                           \\|          4-pin
  | 13 o-+-+--oGND                                              Connector
  | 25 o-+-+      ------------------ Part List --------------------------
  --------        | 1 - .1 uF capacitor   | 6 - 10K 5% resistors        |
  25-pin male D   | 1 - 4-pin connector   | 1 - 25-pin male D connector |
  connector to PC | 1 - 74LS05 open collector hex inverter              |
  printer port    ------------------------------------------------------- 
.Ed
.Pp
.Sh SEE ALSO
.Xr iicbus 4 ,
.Xr iicbb 4 ,
.Xr ppbus 4
.Sh HISTORY
The
.Nm
manual page first appeared in
.Fx 3.0 .
.Sh AUTHOR
This
manual page was written by
.<NAME> .
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