1.\" $OpenBSD: mii.4,v 1.9 2001/03/12 07:45:47 aaron Exp $ 2.\" $NetBSD: mii.4,v 1.1 1998/11/04 05:21:50 thorpej Exp $ 3.\" 4.\" Copyright (c) 1998 The NetBSD Foundation, Inc. 5.\" All rights reserved. 6.\" 7.\" This code is derived from software contributed to The NetBSD Foundation 8.\" by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9.\" NASA Ames Research Center. 10.\" 11.\" Redistribution and use in source and binary forms, with or without 12.\" modification, are permitted provided that the following conditions 13.\" are met: 14.\" 1. Redistributions of source code must retain the above copyright 15.\" notice, this list of conditions and the following disclaimer. 16.\" 2. Redistributions in binary form must reproduce the above copyright 17.\" notice, this list of conditions and the following disclaimer in the 18.\" documentation and/or other materials provided with the distribution. 19.\" 3. All advertising materials mentioning features or use of this software 20.\" must display the following acknowledgement: 21.\" This product includes software developed by the NetBSD 22.\" Foundation, Inc. and its contributors. 23.\" 4. Neither the name of The NetBSD Foundation nor the names of its 24.\" contributors may be used to endorse or promote products derived 25.\" from this software without specific prior written permission. 26.\" 27.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37.\" POSSIBILITY OF SUCH DAMAGE. 38.\" 39.Dd November 3, 1998 40.Dt MII 4 41.Os 42.Sh NAME 43.Nm mii 44.Nd IEEE 802.3 Media Independent Interface 45.Sh SYNOPSIS 46.Cd "amphy* at mii? phy ?" 47.Cd "brgphy* at mii? phy ?" 48.Cd "exphy* at mii? phy ?" 49.Cd "icsphy* at mii? phy ?" 50.Cd "inphy* at mii? phy ?" 51.Cd "iophy* at mii? phy ?" 52.Cd "lxtphy* at mii? phy ?" 53.Cd "mtdphy* at mii? phy ?" 54.Cd "nsphy* at mii? phy ?" 55.Cd "nsphyter* at mii? phy ?" 56.Cd "qsphy* at mii? phy ?" 57.Cd "rlphy* at mii? phy ?" 58.Cd "sqphy* at mii? phy ?" 59.Cd "tlphy* at mii? phy ?" 60.Cd "tqphy* at mii? phy ?" 61.Cd "txphy* at mii? phy ?" 62.Cd "ukphy* at mii? phy ?" 63.Cd "xmphy* at mii? phy ?" 64.Sh DESCRIPTION 65Media Independent Interface is an IEEE standard serial bus for 66connecting MACs (network controllers) to PHYs (physical media 67interfaces). 68The 69.Nm 70layer allows network device drivers to share support code for 71various PHY models, and allows unused support for PHYs which 72are not present in a system to be removed from the kernel. 73.Pp 74Network device drivers which use the 75.Nm 76layer carry the 77.Dq mii 78autoconfiguration attribute. 79This allows kernel configuration files to simply specify PHYs as 80described above in the synopsis. 81.Pp 82The following is an example of the messages displayed when a network 83interface with an attached PHY is detected by the kernel: 84.Bd -literal -offset indent 85hme0 at sbus0 slot 1 offset 0x8c00000 pri 7: address 08:00:20:22:86:b8 rev 34 86nsphy0 at hme0 phy 1: DP83840 10/100 media interface, rev. 1 87.Ed 88.Pp 89.Xr ifconfig 8 90can be used to display the media types supported by the PHY. 91These media types are valid media keywords for use with the 92.Xr ifconfig 8 93program. 94.Sh SEE ALSO 95.Xr amphy 4 , 96.Xr brgphy 4 , 97.Xr exphy 4 , 98.Xr icsphy 4 , 99.Xr ifmedia 4 , 100.Xr inphy 4 , 101.Xr iophy 4 , 102.Xr lxtphy 4 , 103.Xr mtdphy 4 , 104.Xr netintro 4 , 105.Xr nsphy 4 , 106.Xr nsphyter 4 , 107.Xr qsphy 4 , 108.Xr rlphy 4 , 109.Xr sqphy 4 , 110.Xr tlphy 4 , 111.Xr tqphy 4 , 112.Xr txphy 4 , 113.Xr ukphy 4 , 114.Xr xmphy 4 , 115.Xr ifconfig 8 116