| MIIBUS(4) | Device Drivers Manual | MIIBUS(4) |
miibus — IEEE
802.3 Media Independent Interface network bus
For most network interface cards (NIC):
device miibus
The miibus 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.
The miibus 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
miibus 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.
The following network device drivers use the
miibus interface:
The implementation of miibus was
originally intended to have similar API interfaces to
BSD/OS 3.0 and NetBSD, but
as a result are not well behaved newbus device drivers.
ae(4), age(4), alc(4), ale(4), arp(4), aue(4), axe(4), axge(4), bce(4), bfe(4), bge(4), cas(4), dc(4), ed(4), et(4), fxp(4), gem(4), hme(4), jme(4), lge(4), msk(4), netintro(4), nfe(4), nge(4), pcn(4), re(4), rgephy(4), rl(4), rue(4), sf(4), sge(4), sis(4), sk(4), smsc(4), ste(4), stge(4), tl(4), tx(4), udav(4), ure(4), vge(4), vr(4), vte(4), wb(4), xl(4)
More information on MII can be found in the IEEE 802.3 Standard.
The miibus driver first appeared in
FreeBSD 3.3.
This manual page was written by Tom Rhodes <trhodes@FreeBSD.org>.
| December 1, 2015 | Debian |