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This document describes the usage and errata of the 3Com "Vortex" device
driver for Linux.

This driver supports the following hardware:
        3c590, 3c592, 3c595, 3c597

When loaded as a module the following variables may be set:
 name    type   description
 debug   int    The debug message level, 0 (no messages) to 6 (wordy).
 options int[]  The media type override and card operation settings
                (See list below.)

An example of loading the vortex module is
        insmod 3c59x.o debug=1 options=0,,12
This sets the debug message level to minimal messages, sets the first card to
the 10baseT transceiver, the second to the EEPROM-set transceiver, and the
third card to operate in full-duplex mode using its 100baseTx transceiver.
(Note: card ordering is set by the PCI BIOS.)

Possible media type settings
        0        10baseT
        1       10Mbs AUI
        2       undefined
        3       10base2 (BNC)
        4       100base-TX
        5       100base-FX
        6       MII (not yet available)
        7       <Use default setting>
        
        8       Full-duplex bit
                8 10baseT full-duplex
                12 100baseTx full-duplex 
        16      Bus-master enable bit (experimental use only!)

Details of the device driver implementation are at the top of the source file.