.\"     $OpenBSD: hme.4,v 1.12 2009/01/20 08:12:35 jmc Exp $
.\"
.\" Copyright (c) 1998 Jason L. Wright (jason@thought.net)
.\" 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.
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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.\" DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd $Mdocdate: January 20 2009 $
.Dt HME 4
.Os
.Sh NAME
.Nm hme
.Nd Sun Happy Meal 10/100 Ethernet device
.Sh SYNOPSIS
.Cd "hme* at pci?"
.Cd "hme* at sbus?"
.Cd "luphy* at mii?"
.Cd "nsphy* at mii?"
.Cd "qsphy* at mii?"
.Sh DESCRIPTION
The
.Nm
interface provides access to the 10Mb/s and 100Mb/s Ethernet networks via the
.Tn National
DP83840
Ethernet 10/100 Mb/s Physical Layer
or the
.Tn Quality
QS6612
Ethernet MII Transceiver for Category 5 Twisted Pair Cable
chip sets.
The
.Nm
is found on the SunSwift and Sun QuadFastEthernet boards.
.Pp
When a
.Nm
interface is brought up, by default, it will attempt to auto-negotiate the
link speed and duplex.
The speeds, in order of attempt, are:
100 Mb/s Full Duplex, 100 Mb/s Half Duplex, 10 Mb/s Full Duplex, and
10 Mb/s Half Duplex.
.Pp
The
.Nm
supports several media types, which are selected via the
.Xr ifconfig 8
command.
The supported media types are:
.Bl -tag -width "media autoselect" -offset indent
.It media autoselect
Attempt to autoselect the media type (default)
.It media 100baseTX mediaopt full-duplex
Use 100baseTX, full duplex
.It media 100baseTX
Use 100baseTX, half duplex
.It media 10baseT mediaopt full-duplex
Use 10baseT, full duplex
.It media 10baseT
Use 10baseT, half duplex
.El
.Sh SEE ALSO
.Xr arp 4 ,
.Xr be 4 ,
.Xr ie 4 ,
.Xr ifmedia 4 ,
.Xr inet 4 ,
.Xr intro 4 ,
.Xr le 4 ,
.Xr luphy 4 ,
.Xr netintro 4 ,
.Xr qe 4 ,
.Xr sbus 4 ,
.Xr hostname.if 5 ,
.Xr ifconfig 8
.Rs
.%T "STP2002QFP Fast Ethernet, Parallel Port, SCSI (FEPS) User's Guide"
.%D April 1996
.%A Sun Microelectronics
.Re
.Sh HISTORY
.Ox
support for the
.Nm
first appeared in
.Ox 2.4 .
.Sh CAVEATS
The
.Nm
SBus cards will not function in a sun4c class machine,
due to PROM limitations.