KUE(4)                    OpenBSD Programmer's Manual                   KUE(4)

NAME
     kue - Kawasaki LSI KL5KUSB101B USB Ethernet device

SYNOPSIS
     kue* at uhub?

DESCRIPTION
     The kue driver provides support for USB Ethernet adapters based on the
     Kawasaki LSI KL5KLUSB101B chipset.  This includes the following adapters:

           3Com 3c19250
           3Com 3c460 HomeConnect
           AboCom Systems URE450 Ethernet
           ADS Technologies USB-10BT
           Aox USB101
           Asante USB to Ethernet
           ATen DSB-650C
           ATen UC10T
           Corega USB-T
           D-Link DSB-650C
           Entrega NET-USB-E45
           I/O Data USB-ET/T
           Jaton USB XpressNet
           Kawasaki USB101
           Kingston Ethernet
           Linksys USB10T
           Mobility Ethernet
           Netgear EA101
           Peracom USB
           Portgear Ethernet
           Portsmith Express Ethernet
           Psion Dacom Gold Port Ethernet
           Shark Pocket Adapter
           Silicom U2E
           SMC 2102USB
           SMC 2104USB

     The KL5KLUSB101B supports a 128-entry multicast filter, single perfect
     filter entry for the station address and promiscuous mode.  Packets are
     received and transmitted over separate USB bulk transfer endpoints.

     The Kawasaki adapter supports only 10Mbps half-duplex mode, hence there
     are no ifmedia(4) modes to select.

     For more information on configuring this device, see ifconfig(8).

FILES
     The driver needs a firmware file, which is loaded on demand when the de-
     vice is attached:

           /etc/firmware/kue

DIAGNOSTICS
     kue%d: watchdog timeout  A packet was queued for transmission and a
     transmit command was issued, however the device failed to acknowledge the
     transmission before a timeout expired.

     kue%d: no memory for rx list  The driver failed to allocate an mbuf for
     the receiver ring.

SEE ALSO
     arp(4), intro(4), netintro(4), usb(4), hostname.if(5), ifconfig(8)

HISTORY
     The kue device driver first appeared in FreeBSD 4.0.  OpenBSD support was
     added in OpenBSD 2.7.

AUTHORS
     The kue driver was written by Bill Paul <wpaul@ee.columbia.edu> and port-
     ed to OpenBSD by Aaron Campbell <aaron@openbsd.org>.

BUGS
     The kue driver does not accumulate Ethernet collisions statistics because
     the Kawasaki firmware does not appear to maintain any internal statis-
     tics.

OpenBSD 4.7                      May 31, 2007                                2
