Hi, 2.6.26 is quite old, please at least try with a newer kernel (> 2.6.28), This camera is working very well on Ubuntu Jaunty (2.6.28). 2.6.26 doesn't even have uvc builtin (it's only available since 2.6.27).
Also, regarding the Philips cameras (pwc) although most of them advertise usb2 compatibility they are in truth usb1 cameras. Best regards, Paulo 2009/6/29 Saint Germain <[email protected]> Hello, > > Sorry for the misunderstanding (maybe my english could be better): > I've tried on another port and another computer and I had exactly the > same problem. > I will try on a third computer this evening, but if the problem is > still the same, surely the problem couldn't be on the USB controller > (otherwise it would be really surprising that I would be the first to > note this kind of problem which occur on every kind of USB > controller). > > Something that I haven't tried is another linux distro: I've always > tried on Debian. Maybe I should give a shot to Suse or RedHat. > > Thanks anyway ! > > 2009/6/29 Brian Pin <[email protected]>: > > Hi, > > Based on the link you provided > > (http://forums.quickcamteam.net/showthread.php?tid=860), There are > obviously > > a lot of frame drops (USB isochronous frame lost (-71).) "-71" means > > -EPROTO, which will be dropped by the driver: > > : > > for (i = 0; i < urb->number_of_packets; ++i) { > > if (urb->iso_frame_desc[i].status < 0) { > > uvc_trace(UVC_TRACE_FRAME, "USB isochronous frame lost > (%d).\n", > > urb->iso_frame_desc[i].status); > > continue; > > } > > : > > The "-EPROTO" status of each isoc packet is set by the host controller > > driver when there are some error happens and halts the controller. You > also > > verified on the other machines the situation is not happening, so maybe > you > > can try some different port of your Linux machine, or find a different > Linux > > machine to test it. All in all the reason probabbly is not related to the > > device or the application. It is just the host controller you use. Maybe > try > > to post some questions on Linux-USB mailing list helps. > > -- > > Best Regards > > Brian > > > _______________________________________________ > Linux-uvc-devel mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/linux-uvc-devel >
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