I'm running NetBSD 1.5.2 on a powermac 7300.

Does anyone know whether the mc0 interface can work in full duplex
mode?  Right now I seem to only be getting simplex:

# ifconfig -m mc0
mc0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	address: 00:05:02:ce:73:66
	media: Ethernet manual
	supported Ethernet media:
		media manual
	inet 192.168.1.3 netmask 0xffffff00 broadcast 192.168.1.255
	inet6 fe80::205:2ff:fece:7366%mc0 prefixlen 64 scopeid 0x1

From googling around I suspect that if full-duplex was supported, then
the following command should work, so I'm not hopeful:

# ifconfig mc0 mediaopt full-duplex
ifconfig: SIOCSIFMEDIA: Device not configured

-russ