Please see the /usr/src/COPYRIGHT file for copyright information.
This document takes information from the IEEE 802.3 Standard
along with various comments from Peter Wemm, Robert Watson, and Bill Paul.
Originally this file looked much like the NetBSD mii(4) manual page, but
I doubt you would ever notice due to large differences.
$FreeBSD: head/share/man/man4/miibus.4 111021 2003-02-16 22:30:00Z trhodes $
.Dd February 15, 2003 .Dt MIIBUS 4 .Os .Sh NAME .Nm miibus .Nd IEEE 802.3 Media Independent Interface network bus .Sh SYNOPSIS For most network interface cards (NIC): .Cd "device miibus" .Sh DESCRIPTION The .Nm driver provides an interconnection between the Media Access Control (MAC) sublayer, the Physical Layer entities (PHY), Station Management (STA) entities, and the PHY Layer as defined by the IEEE 802.3 Standard.
p The .Nm layer allows network device drivers to share common support code for various external PHY devices. Most 10/100 network interface cards either use an MII transceiver or have built-in transceivers that can be programmed using an MII interface. The .Nm driver currently handles all of the media detection, selection, and reporting using the ifmedia interface. A generic driver has been included for all PHYs that are not handled by a specific driver, this is possible because all 10/100 PHYs implement the same general register set along with their vendor specific register set.
p The following network device drivers use the .Nm interface: l -tag -compact -width "Supported Devices" t an Aironet 4500/4800 802.11 wireless NICs t aue ADMtek USB Ethernet t awi BayStack 660 and others t bge Broadcom BCM570xx Gigabit Ethernet t cue CATC USB Ethernet t dc DEC/Intel 21143 and various workalikes t ed NE[12]000, SMC Ultra, 3c503, DS8390 cards t fxp Intel EtherExpress PRO/100B (82557, 82558) t kue Kawasaki LSI USB Ethernet t pcn AMD Am79C97x PCI 10/100 t rl RealTek 8129/8139 t sf Adaptec AIC-6915 t sis Silicon Integrated Systems SiS 900/SiS 7016 t ste Sundance ST201 (D-Link DFE-550TX) t tl Texas Instruments ThunderLAN t tx SMC EtherPower II (83c170) t vr VIA Rhine, Rhine II t wb Winbond W89C840F t xl 3Com 3c90x .El .Sh COMPATIBILITY The implementation of .Nm was originally intended to have similar API interfaces to sx 3.0 and .Nx , but as a result are not well behaved newbus device drivers. .Sh SEE ALSO .Xr an 4 , .Xr arp 4 , .Xr aue 4 , .Xr awi 4 , .Xr bge 4 , .Xr cue 4 , .Xr dc 4 , .Xr ed 4 , .Xr fxp 4 , .Xr kue 4 , .Xr netintro 4 , .Xr pcn 4 , .Xr rl 4 , .Xr sf 4 , .Xr sis 4 , .Xr ste 4 , .Xr tl 4 , .Xr tx 4 , .Xr vr 4 , .Xr wb 4 , .Xr xl 4 . .Sh STANDARDS More information on MII can be found in the IEEE 802.3 Standard. .Sh HISTORY The .Nm driver first appeared in .Fx 3.3 . .Sh AUTHORS This manual page was written by .An Tom Rhodes Aq trhodes@FreeBSD.org .