> It won't be too hard to port FreeBSD 'an' driver into NetBSD, but I'd like
> to merge hardware related part with wi driver.  From my understanding,
> 'an' and 'wi' are same/similar chipset with different firmware.
> 
> Though I've failed to get cisco card, I'll try to look into this.

I've just ported the 'an' driver from FreeBSD without substantial
modifications...

Atsushi Onoe
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Port 'an' driver for Aironet PC4500/PC4800 IEEE802.11 card from FreeBSD.
This is very adhoc work for IETF meeting.
- Since it seems that 'an' and 'wi' have similar hardware, low level
  functions should be shared.
- There are PCI/ISA cards of Aironet but not supported yet.
- The wiconfig interface is changed so that wiconfig cannot be used.
- 'ancontrol' of FreeBSD is not ported.
- Only infrastructure mode is tested.
- WEP is not supported.

Though I only have an Aironet card, Cisco card should be expected to work.