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GEM(4)		       FreeBSD Kernel Interfaces Manual			GEM(4)

NAME
     gem -- ERI/GEM/GMAC Ethernet device driver

SYNOPSIS
     device miibus
     device gem

DESCRIPTION
     The gem driver provides support for the GMac Ethernet hardware found
     mostly in the last	Apple PowerBooks G3s and most G4-based Apple hardware,
     as	well as	many Sun UltraSPARCs.

HARDWARE
     Cards supported by	gem driver include:

     +o	 Sun GEM gigabit Ethernet
     +o	 Sun ERI 10/100	Mbps Ethernet
     +o	 Apple GMAC

NOTES
     On	sparc64	the gem	driver respects	the local-mac-address? system configu-
     ration variable which can be set in the Open Firmware boot	monitor	using
     the setenv	command	or by eeprom(8).  If set to ``false'' (the default),
     the gem driver will use the system's default MAC address for all of its
     devices.  If set to ``true'', the unique MAC address of each interface is
     used if present rather than the system's default MAC address.

     Supported interfaces having their own MAC address include the on-board
     Sun ERI 10/100 Mbps and GEM gigabit Ethernet Interfaces on	boards
     equipped with more	than one Ethernet interface and	the Sun	GEM gigabit
     Ethernet add-on cards.

SEE ALSO
     hme(4), miibus(4),	netintro(4), eeprom(8),	ifconfig(8)

HISTORY
     The gem device driver appeared in NetBSD 1.6.  The	first FreeBSD version
     to	include	it was FreeBSD 5.0.

AUTHORS
     The gem driver was	written	by Eduardo Horvath <eeh@NetBSD.org>.  The man
     page was written by Thomas	Klausner <wiz@NetBSD.org>.

FreeBSD	9.2			August 15, 2004			   FreeBSD 9.2

NAME | SYNOPSIS | DESCRIPTION | HARDWARE | NOTES | SEE ALSO | HISTORY | AUTHORS

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