I2C framework manpages. See iicbus(4) for more info.

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+.\" Copyright (c) 1998, Nicolas Souchu
+.\" 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 IIC 4
+.Os FreeBSD
+.Sh NAME
+.Nm iic
+.Nd
+I2C generic i/o device driver
+.Sh SYNOPSIS
+.Cd "device iic0 at iicbus?"
+.Sh DESCRIPTION
+The
+.Em iic
+character device driver provides generic i/o to any
+.Xr iicbus 4
+instance. In order to control I2C devices, use /dev/iic? with the
+following ioctls:
+.Pp
+.Bl -column "Ioctls" -compact
+.It Em Ioctl Ta Em Description
+.It Sy I2CSTART Ta "send start condition to the specified device (with 7-bit address) on the bus"
+.It Sy I2CSTOP Ta "send stop condition to the bus"
+.It Sy I2CRSTCARD Ta "reset the bus"
+.El
+.Pp
+You may also use read/write routines, then I2C start/stop handshake is
+managed by the iicbus system.
+.Pp
+.Sh SEE ALSO
+.Xr iicbus 4
+.Sh HISTORY
+The
+.Nm
+manual page first appeared in
+.Fx 3.0 .
+.Sh AUTHOR
+This
+manual page was written by
+.An Nicolas Souchu .