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MC(4) Device Drivers Manual (macppc) MC(4)

Am79C940 (MACE) on-board Ethernet device

mc* at macobio?

The mc interface provides access to a 10 Mb/s Ethernet network via the AMD Am79C940 (MACE) Ethernet chip set.
The mc interface supports the on-board Ethernet of most old world Power Macintosh systems.
Machines supported by the mc driver include:

arp(4), ifmedia(4), inet(4), intro(4), macobio(4), netintro(4), hostname.if(5), ifconfig(8)

The mc driver first appeared in OpenBSD 4.1.

The mc Ethernet driver was written by Dave Huang.
May 31, 2007 OpenBSD-current