EF(4)

NAME
ef - 3Com Fast EtherLink ISA (3c515) 10/100 Ethernet device

SYNOPSIS
ef* at isapnp?
nsphy* at mii?

DESCRIPTION
The ef device driver supports the 3Com Fast EtherLink ISA family of Ethernet cards, and embedded controllers based on the 3Com “corkscrew” EtherLink chips.

The following media types and options (as given to ifconfig(8)) are supported:

media autoselect
    Enable autoselection of the media type and options (default).

media 100baseTX mediaopt full-duplex
    Set 100Mbps (Fast Ethernet) operation and force full-duplex mode.

media 100baseTX mediaopt half-duplex
    Set 100Mbps (Fast Ethernet) operation and force half-duplex mode.

media 10baseT mediaopt full-duplex
    Set 10Mbps operation and force full-duplex.

media 10baseT mediaopt half-duplex
    Set 10Mbps operation and force half-duplex.

If no media options are present, the ef driver places the card into autoselect mode.

For more information on configuring this device, see ifconfig(8).

DIAGNOSTICS

ef0: adapter failure (XXXX) A fatal error during receive or transmit has occurred.

ef0: eeprom failed to come ready When reading/writing the EEPROM, the busy bit failed to clear. This may indicate a hardware problem.

ef0: device timeout The device has stopped responding to the network, or there is a problem with the network connection (cable).

SEE ALSO
ifmedia(4), intro(4), isapnp(4), nsphy(4), hostname.if(5), ifconfig(8)

HISTORY
The ef device driver first appeared in OpenBSD 2.6.

AUTHORS
The ef driver was written by Jason L. Wright <jason@thought.net>.