Date: Thu, 1 May 2008 07:32:18 -0500 From: "Engineering" <ee@athyriogames.com> To: <freebsd-usb@freebsd.org> Subject: Intro and question about High speed Isochronous Message-ID: <JIEGIIKNNGNDIBENLEAOMELIDNAA.ee@athyriogames.com> In-Reply-To: <a276da400804302233k69a60068u10f5975042e65d83@mail.gmail.com>
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Hi all, this is Sam Zehr. I am an embedded systems programmer working on porting an app to FreeBSD. I'm afraid I'm no expert in BSD, or any *nix stuff, but I'm plugging along. My project requires high-speed isochronous transfer. At first, I thought, no problem. I got it working in Windows with a generic USB driver, so BSD should be easy! I started using ugen and got most of the code ported. Then I found out ehci does not support isochronous! Looking through archives, and googling, I see that work is being done to fix this (and it would appear that this is the right list, as I see the same names as some of the websites I've been to) Basically, I'm trying to implement a limited subset of UVC. I'm open to doing this whichever way will work. So, my questions are: Is there a fix coming for ehci so iso will work? Is there a new USB stack coming with high-speed iso? Will it work with ugen? If not ugen, how do I get at it? Is anyone working on a UVC driver? I don't need all the features, just to get at the stream data. I apologize if the answers are common knowledge, but I couldn't find anything definative in my googling. Thanks Sam
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