EP(4) OpenBSD Programmer's Manual EP(4)
ep - 3Com EtherLink III and Fast EtherLink III 10/100 Ethernet device
ep* at eisa?
ep* at isa?
ep* at pci?
ep* at pcmcia?
ep* at isapnp?
tqphy* at mii?
The ep device driver supports the 3Com EtherLink III and Fast EtherLink
III family of Ethernet cards. This includes, among others, the following
3C509 EtherLink III ISA
3C509B EtherLink III ISA (Plug-and-Play)
3C556 EtherLink III LAN+Modem PC Card (PCMCIA)
3C562 EtherLink III LAN+33.6K Modem PC Card (PCMCIA)
3C574 Fast EtherLink III 10/100 LAN PC Card (PCMCIA)
3C579 EtherLink III EISA
3C589 EtherLink III LAN PC Card (PCMCIA)
3C590 Fast EtherLink III PCI
3C592 EtherLink III EISA Bus Master
3C595 Fast EtherLink III PCI 10/100
3C597 Fast EtherLink III EISA 10/100
Category 3, 4 or 5 unshielded twisted-pair (UTP) cable should be used for
RJ-45 (10baseT), thick Ethernet coaxial (RG59 B/U, 50 ohm) for AUI/DIX,
and thin Ethernet coaxial (RG58 A/U or C/U, 50 ohm +/- 4) for BNC
(10base2). Some 3Com NICs also support MII connectors (switchable
The following media types and options (as given to ifconfig(8)) are
Enable autoselection of media type and options.
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 10baseT (UTP) operation and force full-duplex mode.
media 10baseT mediaopt half-duplex
Set 10baseT (UTP) operation and force half-duplex mode.
Set 10base5 (thick-net) operation (half-duplex only).
Set 10base2 (thin-net) operation (half-duplex only).
Note that the 100baseTX media type is only available if supported by the
adapter. For more information on configuring this device, see
ifconfig(8). To view a list of media types and options supported by your
card try ``ifconfig <device> media''. For example, ``ifconfig ep0
If more than one of the supported cards is installed, they are probed for
in the following order:
1. PCI cards based on PCI function number order.
2. EISA cards based on EISA slot number order.
3. ISA cards based on increasing Ethernet address order.
4. Any ISA cards in Plug-and-Play mode, in Plug-and-Play order.
You may specify the port and IRQ numbers where the cards are expected to
be found, but it is not necessary. The cards are intelligent enough to
let us know where they live on the bus.
ep0: reset (status: %x) The driver has encountered a FIFO underrun or
overrun. The driver will reset the card and the packet will be lost.
This is not fatal.
ep0: eeprom failed to come ready The EEPROM failed to come ready. This
probably means the card is wedged.
ep0: erase pencil mark, or disable PnP mode! This means that someone has
scribbled with pencil in the test area on the card. Erase the pencil
mark and reboot. (This is not a joke).
eisa(4), ifmedia(4), intro(4), isa(4), isapnp(4), pci(4), pcmcia(4),
tqphy(4), hostname.if(5), ifconfig(8)
OpenBSD 5.1 September 7, 2008 OpenBSD 5.1
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