EX(4) | Device Drivers Manual (vax) | EX(4)

# NAME

`ex` — Excelan 10 Mb/s Ethernet interface

# SYNOPSIS

`ex0 at uba0 csr 164000 vector excdint`

# DESCRIPTION

NOTE: This driver has not been ported from 4.4BSD yet.

The `ex` interface provides access to a 10 Mb/s Ethernet network through an Excelan controller used as a link-layer interface.

Each of the host's network addresses is specified at boot time with an `SIOCSIFADDR` ioctl(2). The `ex` interface employs the address resolution protocol described in arp(4) to dynamically map between Internet and Ethernet addresses on the local network.

# DIAGNOSTICS

ex%d: HW %c.%c, NX %c.%c, hardware address %s.
  This provides firmware revisions levels, and is expected during autoconfiguration.
ex%d: can't initialize.
  There was a failure in allocating UNIBUS resources for the device.
ex%d: configuration failed; cc = %x.
  The hardware indicated an error when trying to initialize itself. The error code returned is described at length in the device Reference Manual.
ex%d: receive error %b.
  The hardware indicated an error in reading a packet from the cable. Specific Error bits are provided
ex%d: transmit error %b.
  The hardware indicated an error in transmitting a packet to the cable or an illegally sized packet. Specific Error bits are provided
ex%d: can't handle af%d.
  The interface was handed a message with addresses formatted in an unsuitable address family; the packet was dropped.

# SEE ALSO

arp(4), inet(4), netintro(4)

# HISTORY

The `ex` driver appeared in 4.3BSD.

February 5, 2019 | NetBSD 11.0