Date: Thu, 1 May 2008 23:57:47 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-usb@freebsd.org Cc: Marcin Cieslak <saper@system.pl> Subject: Re: Intro and question about High speed Isochronous Message-ID: <200805012357.48056.hselasky@c2i.net> In-Reply-To: <481A1B4E.6010105@system.pl> References: <a276da400804302233k69a60068u10f5975042e65d83@mail.gmail.com> <JIEGIIKNNGNDIBENLEAOMELIDNAA.ee@athyriogames.com> <481A1B4E.6010105@system.pl>
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On Thursday 01 May 2008, Marcin Cieslak wrote: > Engineering wrote: > > I started using ugen and got most of the code ported. Then I > > found out ehci does not support isochronous! > > How did you try to use this? > > > 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? > > My advice would be not to use libusb, just prepare your own kernel > module. In most cases it is much simpler than ugen. Have a look at > simple drivers like uscanner to see how to start with the USB kernel > driver. > > > Is anyone working on a UVC driver? I don't need all the features, just > > to get at the stream data. > > You might want to have a look at Luigi Rizzo's work on video: > > http://info.iet.unipi.it/~luigi/FreeBSD/usb-cameras.html > > --Marcin Hi, You will need the my USB stack for HS ISOC transfers. You might be able to backport the HS ISOC part from my USB stack. --HPS
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