MDIO(4) FreeBSD Kernel Interfaces Manual MDIO(4)
NAME
mdio - IEEE 802.3 Management Data Input/Output interface
SYNOPSIS
To compile this driver into the kernel, place the following line in your
kernel configuration file:
device mdio
DESCRIPTION
The mdio driver provides an interconnection between the Media Access
Control (MAC) sublayer and Physical Layer (PHY) entities' control and
status registers, as defined by the IEEE 802.3 Standard.
The mdio layer allows device drivers to share common support code for
various external PHY devices.
MDIO is one of two signal interfaces that comprise the Media Independent
Interface (MII) defined by the IEEE 802.3 Standard. The miibus(4) driver
provides support for devices that require full MII support.
SEE ALSO
miibus(4)
STANDARDS
More information on MDIO can be found in the IEEE 802.3 Standard.
HISTORY
The mdio driver first appeared in FreeBSD 10.0.
AUTHORS
The driver was written by Stefan Bethke <
[email protected]>.
FreeBSD 14.1-RELEASE-p8 December 17, 2015 FreeBSD 14.1-RELEASE-p8