On Monday 17 January 2005 4:58 pm, lei chen wrote: > --- Oliver Neukum <[EMAIL PROTECTED]> ï > > Am Montag, 17. Januar 2005 10:07 schrieb lei chen: > > > Hi, > > > Just very curious. The USB video class > > > specification has been there for more than a year. > > > Only MS Windows XP claims to support this class spec. > > > It really supports a JVC camera,which is said to be > > > compliant with USB Video Class 1.0. > > > I wonder if Linux has some plan or roadmap to support > > > this spec?
Linux doesn't "do" roadmaps ... I'd certainly like to see such a class driver, but nobody's signed up to implement one yet. > > This class is quite complex. The USB parts shouldn't be; it's a bit of housekeeping on top of some ISO traffic management. And interestingly enough, the pipe stuff Linus has been working on lately might simplify some of the get-data-to-userspace stuff. > > Is there real hardware using it? > > "Is said to" is a little weak. > > > We have such a JVC camera. It really works well on Windows XP SP2 with no > need of an additional driver. From CATC, I can aslo find its descriptors > are USB video class compliant. So it's time for someone to start a Linux driver for it ... we've had the IAD descriptors sitting in <linux/usb_ch9.h> since last fall, but nobody's yet started writing the video class support. Or at least, if they have started, nobody's fessed up yet on this list. There are some lists more focussed on video support; it'd be worth checking in those contexts too. In this situation it's customary for the person wanting the driver to write one or fund it. Or wait until someone else does one of those... :) - Dave > I don't know how to test its compliance.Does > USB.org have some test tools? ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
