Message: 3
Date: Fri, 06 Feb 2015 15:13:13 +0100
From: "Ing. Bernhard Schauer"<[email protected]>
To:[email protected]
Subject: Re: Usb Digest, Vol 12, Issue 11
Message-ID:<[email protected]>
Content-Type: text/plain; charset=utf-8; format=flowed
Hello Gordon,
thank you for your reply. I've now dumped all my config descriptor and
double checked with the spec. As far as I've seen, everything should be
ok. Could you please be so kind and have a short look too at it? Maybe I
just looked over it. I'm just curious, as the device works under Windows
and Linux without issues
Bernard, sorry I don't see anything right off. I have been under the
weather and maybe missing it myself. Other than your clock source and
some other minor differences I don't really see anything different than
the 34 devices we made.
The big thing here is that Windows doesn't support Class 2 and ALSA and
most of the Windows drivers don't nearly parse the tables as well as
Apple does on these types of devices. I learned that the hard way years
ago with Class 1 stuff. If you get it to work here (OSX) first, it has a
better chance of working under ALSA and most of the Windows drivers.
We are writing our 3rd Windows Class 2 driver now and it's pretty
specific, we are not parsing much at all and I can see why even ours
would work on Windows and not on OSX.
Are you using a USB analyzer and don't see the IN'S?
Thanks,
Gordon
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