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SE(4) NetBSD Kernel Interfaces Manual SE(4)
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se -- Cabletron EA41x SCSI bus Ethernet interface driver
se* at scsibus? target ? lun ?
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
Ian Dall <email@example.com>
Acknowledgement: Thanks are due to Philip L. Budne <firstname.lastname@example.org> 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.
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.
NetBSD 9.0 February 3, 1997 NetBSD 9.0