Re: [Linux-uvc-devel] Problems with QC 5000 Pro, Ubuntu 5.1, 2.6.12-10-386
Linux UVC driver and tools
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From: Laurent P. <lau...@sk...> - 2006-01-31 01:30:41
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Hi Matthias, > I have got a Logitech Quickcam 5000 Pro and want to use it under linux - > thus I found and downloaded your driver. > > I compiled it using Ubuntu Linux 5.1, kernel 2.6.12-10-386, compilation > and installation worked fine without warnings. > But the driver seems to fail on my configuration. > > If I'm connecting the QC 5000, dmesg output is: > ===== > [4296804.731000] usb 3-2: new high speed USB device using ehci_hcd and > address 7[4296805.114000] usbvideo: Probing device 2 > [4296805.115000] Format MJPEG found > [4296805.115000] Format Uncompressed found > [4296805.116000] usbvideo: Found a Status endpoint (addr 87). > [4296805.116000] usbvideo: Found UVC device (1.00) > [4296805.117000] usbvideo: Scanning UVC chain: OT 5 <- Unit 4 <- Unit 3 > <- Unit 2 <- IT 1 > [4296805.117000] usbvideo: Found a valid video chain (1 -> 5). > [4296805.213000] usbvideo: UVC device initialized. > ===== The device is properly detected as an USB 2.0 peripheral. That's good. > With your test program posted in > https://lists.berlios.de/pipermail/linux-uvc-devel/2006-January/000003.html > using "test /dev/video0" I'm getting the output: > ===== > #Device /dev/video0 opened: . > Video format set: width: 640 height: 480 buffer size: 614400 > 16 buffers allocated. [snip] > Unable to dequeue buffer (5). > ===== That's not good. > I'm getting no output images from the cam, here's the dmesg output: > ===== > [4297530.434000] usbvideo: uvc_v4l2_open > [4297530.447000] usbvideo: VIDIOC_QUERYCAP > [4297530.453000] usbvideo: VIDIOC_S_FMT > [4297530.453000] usbvideo: Trying format 0x56595559 (YUYV): 1280x960. > [4297530.531000] usbvideo: VIDIOC_REQBUFS [snip] > [4297531.532000] usbvideo: VIDIOC_STREAMON > [4297531.982000] usbvideo: > uvc_v4l2_release > [4297532.060000] usbvideo: < uvc_v4l2_release > ===== Could you try with the latest driver ? Insert the driver and enable capture messages with echo -n 16 > /sys/modules/uvcvideo/parameters/trace If it fails, try with a newer kernel (2.6.15 or newer). If it still fails, please post your dmesg output after running the test program. > Could you help me? It's very important to realize an university roboter > project using the qc 5000. Just a wild guess, will you compete for Eurobot 2006 ? Laurent Pinchart |