$ 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.


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