Hi, On Thursday 20 June 2013 11:52:44 Jim Davis wrote: > Building with the attached random configuration file generates errors in > both > > drivers/media/v4l2-core > drivers/media/usb/uvc > > LD init/built-in.o > /home/jim/linux-next/linux/drivers/media/v4l2-core/videobuf2-core.c:2577: > undefi ned reference to `video_devdata' [snip] > /home/jim/linux-next/linux/drivers/media/v4l2-core/videobuf2-core.c:2591: > undefi ned reference to `v4l2_fh_release' [snip] > /home/jim/linux-next/linux/drivers/media/v4l2-core/videobuf2-core.c:1980: > undefi ned reference to `v4l2_event_pending' [snip] > drivers/built-in.o: In function `uvc_delete': > /home/jim/linux-next/linux/drivers/media/usb/uvc/uvc_driver.c:1606: > undefined re ference to `usb_put_intf' [snip] The issue seem to be caused by USB_VIDEO_CLASS=y and VIDEO_V4L2=m && USB=m. I'm not sure what made that combination possible, but I haven't been able to reproduce it locally on next-20130620. Running make with the attached config turns USB_VIDEO_CLASS=y into USB_VIDEO_CLASS=m. -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html