Re: driver similarities..

From: Jim Thompson (
Date: 2002-09-03 01:56:02 UTC

On Monday, September 2, 2002, at 12:17 PM, Jouni Malinen wrote:

> On Thu, Aug 29, 2002 at 11:22:06PM -0700, Jerritt Collord wrote:
>> Would perhaps the architecture of the hostap driver lend itself as a
>> reference for developing the Aetheros drivers?
> I do not know the details of Atheros hardware, but I would assume that
> it is quite a bit different from Prism2 as far as MAC--host interface
> is
> concerned. I would assume that it would use a much more efficient
> method
> for transfering frames between the card and host system (well, at least
> it better use or it won't see maximum 802.11a performance). Thus, at
> least the low-level Prism2-specific part should probably not be used as
> a reference.

I do know the details (I can't say much, its all under NDA). Yes, its very different.
Yes, real DMA works (in both directions), and (yes, thank goodness) its a whole
lot more like ye-olde-Ethernet chip driver, though you do get to deal with 802.11
frames ala 'hostap', so these could be pushed to a user-level daemon.

Linux drivers exist. No, I can't give them to you (yet, perhaps).


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