Ax88172 vs FreeBSD USB stack
Terry Lambert
tlambert2 at mindspring.com
Fri Mar 28 21:03:48 PST 2003
Bernd Walter wrote:
> Well the AC88172 PDF is very clear about having 2 interfaces.
> The document also speaks about 4 endpoints, which I expect to be on
> interface 0 as they also have listed endpoint number 0 - they don't
> tell in the document.
> What I currently don't know is why there are 2 interfaces.
> The document also mentions some homenet capabilities on RJ11 - whatever
> it means.
> Maybe it's an hardware optional interface, which is disabled in this
> special device.
Maybe it's running in "Home PNA" mode by default, so the connector
(identical to an ethernet connector) isn't talking ethernet?
Personally, I think the bul transfers have to happen over the other
interface. I've seen this once before, a while ago. If there's a
Linux driver that works, maybe you can crib from it, where the
documentation is fuzzy?
It also occurs to me that you might try it under Windows, if you
have a recording USB monitor, and see what's different between
your usage and Windows. One particularly nasty thing might be it
needing a firmware download from the driver (it's possible).
Doug Ambrisko could probably help you out; I remember he did a
driver for a similar USB dongle (two interfaces) at Whistle.
-- Terry
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