67 lines
2.2 KiB
Groff
67 lines
2.2 KiB
Groff
.\" $NetBSD: i2cscan.8,v 1.3 2013/07/10 15:18:54 tcort Exp $
|
|
.\"
|
|
.\" Copyright (c) 2011, 2013 The NetBSD Foundation, Inc.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" This code is derived from software contributed to The NetBSD Foundation
|
|
.\" by Thomas Klausner.
|
|
.\"
|
|
.\" 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 July 10, 2013
|
|
.Dt I2CSCAN 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm i2cscan
|
|
.Nd scan an IIC bus for devices
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl r
|
|
.Ar i2cdev
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility scans the IIC bus
|
|
.Pq Xr iic 4
|
|
specified by
|
|
.Ar i2cdev
|
|
to determine which addresses respond.
|
|
.Pp
|
|
Available options:
|
|
.Bl -tag -width Ds
|
|
.It Fl r
|
|
scan using 1 byte reads instead of quick writes.
|
|
.El
|
|
.Pp
|
|
.Em WARNING !
|
|
Using this utility can access some devices in such a
|
|
manner as to leave them in an unstable or unusable state.
|
|
It can also lock up the entire
|
|
.Xr iic 4
|
|
bus.
|
|
Don't use this utility unless you know what you're doing and can
|
|
accept all sorts of unforeseen consequences.
|
|
.Sh EXIT STATUS
|
|
.Ex -std i2cscan
|
|
.Sh SEE ALSO
|
|
.Xr iic 4
|