Oh, please also make sure you are not connecting the camera through a usb hub, unfortunately usb hubs don't work very well in linux and will cause the video stream to fail.
Reagards, Paulo 2010/3/30 Jeff Van Epps <[email protected]>: > $ luvcview -f mjpg -s 320x240 -i 15 > luvcview 0.2.4 > > SDL information: > Video driver: x11 > A window manager is available > Device information: > Device path: /dev/video0 > Stream settings: > Frame format: MJPG > Frame size: 320x240 > Frame rate: 15 fps > Unable to start capture: Input/output error > Error grabbing > Cleanup done. Exiting ... > > --dmesg output below-- > > [199009.851002] uvcvideo: Adding mapping Brightness to control f81155d0/2. > [199009.851021] uvcvideo: Adding mapping Contrast to control f81155f8/3. > [199009.851025] uvcvideo: Adding mapping Hue to control f8115620/6. > [199009.851030] uvcvideo: Adding mapping Saturation to control f8115648/7. > [199009.851034] uvcvideo: Adding mapping Sharpness to control f8115670/8. > [199009.851039] uvcvideo: Adding mapping Gamma to control f8115698/9. > [199009.851044] uvcvideo: Adding mapping Backlight Compensation to > control f8115710/1. > [199009.851049] uvcvideo: Adding mapping Gain to control f8115738/4. > [199009.851054] uvcvideo: Adding mapping Power Line Frequency to control > f8115760/5. > [199009.851060] uvcvideo: Adding mapping Hue, Auto to control f8115788/16. > [199009.851066] uvcvideo: Adding mapping Exposure, Auto to control > f81158c8/2. > [199009.851073] uvcvideo: Adding mapping Exposure, Auto Priority to > control f81158f0/3. > [199009.851080] uvcvideo: Adding mapping Exposure (Absolute) to control > f8115918/4. > [199009.851085] uvcvideo: Adding mapping White Balance Temperature, Auto > to control f81157b0/11. > [199009.851090] uvcvideo: Adding mapping White Balance Temperature to > control f81156c0/10. > [199009.851096] uvcvideo: Adding mapping White Balance Component, Auto > to control f81157d8/13. > [199009.851102] uvcvideo: Adding mapping White Balance Blue Component to > control f81156e8/12. > [199009.851107] uvcvideo: Adding mapping White Balance Red Component to > control f81156e8/12. > [199009.851114] uvcvideo: Adding mapping Focus (absolute) to control > f8115968/6. > [199009.851122] uvcvideo: Adding mapping Focus, Auto to control f8115af8/8. > [199009.851129] uvcvideo: Adding mapping Zoom, Absolute to control > f8115a08/11. > [199009.851136] uvcvideo: Adding mapping Zoom, Continuous to control > f8115a30/12. > [199009.851145] uvcvideo: Adding mapping Privacy to control f8115b20/17. > [199009.867659] uvcvideo: Probing generic UVC device 1.4.1 > [199009.867676] uvcvideo: Found format MJPEG. > [199009.867680] uvcvideo: - 352x288 (7.5 fps) > [199009.867683] uvcvideo: - 160x120 (15.0 fps) > [199009.867686] uvcvideo: - 176x144 (15.0 fps) > [199009.867689] uvcvideo: - 320x240 (15.0 fps) > [199009.867691] uvcvideo: - 640x480 (7.5 fps) > [199009.867699] uvcvideo: Found a Status endpoint (addr 83). > [199009.867702] uvcvideo: Found UVC 1.00 device Monitor Webcam (05a9:2649) > [199009.867709] uvcvideo: Added control f81155d0/2 to device 1.4.1 entity 5 > [199009.867712] uvcvideo: Added control f81155f8/3 to device 1.4.1 entity 5 > [199009.867716] uvcvideo: Added control f8115620/6 to device 1.4.1 entity 5 > [199009.867719] uvcvideo: Added control f8115648/7 to device 1.4.1 entity 5 > [199009.867722] uvcvideo: Added control f8115670/8 to device 1.4.1 entity 5 > [199009.867725] uvcvideo: Added control f8115698/9 to device 1.4.1 entity 5 > [199009.867728] uvcvideo: Added control f81156c0/10 to device 1.4.1 entity 5 > [199009.867732] uvcvideo: Added control f8115710/1 to device 1.4.1 entity 5 > [199009.867735] uvcvideo: Added control f8115760/5 to device 1.4.1 entity 5 > [199009.867739] uvcvideo: Added control f81157b0/11 to device 1.4.1 entity 5 > [199009.867748] uvcvideo: Scanning UVC chain: OT 3 <- PU 5 <- SU 4 <- IT 1 > [199009.867756] (-> XU 7 XU 6) > [199009.867761] uvcvideo: Found a valid video chain (1 -> 3). > [199009.871924] uvcvideo: UVC non compliance - GET_DEF(PROBE) not > supported. Enabling workaround. > [199009.875101] input: Monitor Webcam as > /devices/pci0000:00/0000:00:1a.2/usb5/5-1/5-1.4/5-1.4.1/5-1.4.1:1.0/input/input10 > [199009.875152] uvcvideo: UVC device initialized. > [199009.875193] usbcore: registered new interface driver uvcvideo > [199009.875198] USB Video Class driver (v0.1.0) > [199009.921399] uvcvideo: uvc_v4l2_open > [199009.921420] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QUERYCAP) > [199009.921488] uvcvideo: uvc_v4l2_release > [199009.959207] uvcvideo: uvc_v4l2_open > [199009.959227] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QUERYCAP) > [199009.960290] uvcvideo: uvc_v4l2_release > [199052.679996] uvcvideo: uvc_v4l2_open > [199052.680038] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QUERYCAP) > [199052.680055] uvcvideo: uvc_v4l2_ioctl(VIDIOC_ENUM_FMT) > [199052.680062] uvcvideo: uvc_v4l2_ioctl(VIDIOC_ENUM_FMT) > [199052.680079] uvcvideo: uvc_v4l2_ioctl(VIDIOC_S_FMT) > [199052.680086] uvcvideo: Trying format 0x47504a4d (MJPG): 320x240. > [199052.680090] uvcvideo: Using default frame interval 66666.6 us (15.0 > fps). > [199052.690049] uvcvideo: uvc_v4l2_ioctl(VIDIOC_S_PARM) > [199052.690061] uvcvideo: Setting frame interval to 1/15 (666666). > [199052.695032] uvcvideo: uvc_v4l2_ioctl(VIDIOC_G_PARM) > [199052.695063] uvcvideo: uvc_v4l2_ioctl(VIDIOC_REQBUFS) > [199052.695168] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QUERYBUF) > [199052.695189] uvcvideo: uvc_v4l2_mmap > [199052.695231] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QUERYBUF) > [199052.695237] uvcvideo: uvc_v4l2_mmap > [199052.695261] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QUERYBUF) > [199052.695266] uvcvideo: uvc_v4l2_mmap > [199052.695290] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QUERYBUF) > [199052.695295] uvcvideo: uvc_v4l2_mmap > [199052.695318] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QBUF) > [199052.695323] uvcvideo: Queuing buffer 0. > [199052.695326] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QBUF) > [199052.695329] uvcvideo: Queuing buffer 1. > [199052.695332] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QBUF) > [199052.695336] uvcvideo: Queuing buffer 2. > [199052.695339] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QBUF) > [199052.695342] uvcvideo: Queuing buffer 3. > [199052.703984] uvcvideo: uvc_v4l2_ioctl(VIDIOC_STREAMON) > [199052.792765] uvcvideo: uvc_v4l2_release > > That's the end. > > > _______________________________________________ > Linux-uvc-devel mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/linux-uvc-devel > _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
