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ALC(4) Device Drivers Manual ALC(4)

alc
Atheros AR813x/AR815x 10/100/Gigabit Ethernet device

alc* at pci?
atphy* at mii?

The alc driver provides support for Ethernet interfaces based on the Atheros AR813x/AR815x Ethernet chipset.
The alc driver supports IPv4 receive IP/TCP/UDP checksum offload and VLAN tag insertion and stripping.
The following media types are supported:
Enable autoselection of the media type and options.
Set 10Mbps operation.
Set 100Mbps (Fast Ethernet) operation.
Set 1000Mbps (Gigabit Ethernet) operation.
For more information on configuring this device, see ifconfig(8). To view a list of media types and options supported by the card, try ifconfig <device> media. For example, ifconfig alc0 media.

arp(4), atphy(4), ifmedia(4), intro(4), netintro(4), pci(4), hostname.if(5), ifconfig(8)

The alc device driver first appeared in OpenBSD 4.7.

The alc driver was written by Pyun YongHyeon for FreeBSD and ported to OpenBSD by Kevin Lo <kevlo@openbsd.org>.
July 16, 2013 OpenBSD-5.6