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SE(4)			 BSD Kernel Interfaces Manual			 SE(4)

NAME
     se — Cabletron EA41x SCSI bus Ethernet interface driver

SYNOPSIS
     se* at scsibus? target ? lun ?

DESCRIPTION
     The se driver supports the Cabletron EA41x SCSI bus Ethernet interface.

     This driver is a bit unusual.  It must look like a network interface and
     it must also appear to be a SCSI device to the SCSI system.

     In addition, to facilitate SCSI commands issued by userland programs,
     there are open(), close(), and ioctl() entry points.  This allows a user
     program to, for example, display the EA41x statistic and download new
     code into the adaptor - functions which can't be performed through the
     ifconfig(8) interface.  Normal operation does not require any special
     userland program.

SEE ALSO
     scsi(4), ifconfig(8)

AUTHORS
     Ian Dall <ian.dall@dsto.defence.gov.au>

     Acknowledgement: Thanks are due to Philip L. Budne <budd@cs.bu.edu> who
     reverse engineered the EA41x.  In developing this code, Phil's userland
     daemon "etherd", was referred to extensively in lieu of accurate documen‐
     tation for the device.

BUGS
     The EA41x doesn't conform to the SCSI specification in much at all.
     About the only standard command supported is "inquiry".  Most commands
     are 6 bytes long, but the recv data is only 1 byte.  Data must be
     received by periodically polling the device with the recv command.

BSD			       February 3, 1997				   BSD

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