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EC(4)                    BSD Kernel Interfaces Manual                    EC(4)

     ec -- 3Com EtherLink II (3c503) Ethernet device

     ec0 at isa? port 0x250 iomem 0xd8000 irq 9

     The ec device driver supports 3Com EtherLink II (3C503) Ethernet cards.

     The EtherLink II supports two media types on a single card.  All support
     the AUI media type.  The other media is either BNC or UTP behind a trans-
     ceiver.  Software cannot differentiate between BNC and UTP cards.

     The ec driver supports the following media types:

           10base5  Set 10base5 (thick-net) operation.

           10base2  Set BNC (10base2/thin-net) or UTP operation.

     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 ec0 media''.

     ec0: wildcarded IRQ is not allowed  The IRQ was wildcarded in the kernel
     configuration file.  This is not supported.

     ec0: invalid IRQ <&lt;n>&gt;, must be 3, 4, 5, or 9  An IRQ other than the above
     listed IRQs was specified in the kernel configuration file.  The Ether-
     Link II hardware only supports the above listed IRQs.

     ec0: failed to clear shared memory at offset <&lt;off>&gt;  The memory test was
     unable to clear the interface's shared memory region.  This often indi-
     cates that the card is configured at a conflicting iomem address.

     ifmedia(4), intro(4), isa(4), hostname.if(5), ifconfig(8)

BSD                            September 7, 2008                           BSD