EF(4) BSD Kernel Interfaces Manual EF(4)
ef -- 3Com Fast EtherLink ISA (3c515) 10/100 Ethernet device
ef* at isapnp?
nsphy* at mii?
The ef device driver supports the 3Com Fast EtherLink ISA family of Eth-
ernet cards, and embedded controllers based on the 3Com ``corkscrew''
The following media types and options (as given to ifconfig(8)) are sup-
Enable autoselection of the media type and options (default).
media 100baseTX mediaopt full-duplex
Set 100Mbps (Fast Ethernet) operation and force full-duplex
media 100baseTX mediaopt half-duplex
Set 100Mbps (Fast Ethernet) operation and force half-duplex
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
For more information on configuring this device, see ifconfig(8).
ef0: adapter failure (XXXX) A fatal error during receive or transmit has
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).
ifmedia(4), intro(4), isapnp(4), nsphy(4), hostname.if(5), ifconfig(8)
The ef device driver first appeared in OpenBSD 2.6.
The ef driver was written by Jason L. Wright <firstname.lastname@example.org>.
BSD May 25, 2017 BSD