SE(4) | Device Drivers 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 documentation 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.

February 3, 1997 | NetBSD 11.0