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SE(4)                     NetBSD Programmer's 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 re-
     ceived by periodically polling the device with the recv command.

NetBSD 1.6                     February 3, 1997                              1