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you can try this page That's the documentation for your driver. See step 7: Code: # modprobe usbcore # modprobe i2c-core # modprobe videodev # modprobe w9968cf My idea for ...
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  1. #11
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    you can try this page

    That's the documentation for your driver. See step 7:
    Code:
    # modprobe usbcore
    # modprobe i2c-core
    # modprobe videodev
    # modprobe w9968cf
    My idea for using the /dev file associated with the usb port, was just an idea. Yes, you'd probably need some way of sending back information to the device to change the channel or something. And admittedly, it's not a very good idea, but it might be possible.

    I'm not really all that knowledgeable in v4l, or usb tuner cards, so, I probably won't be much more use to you. My suggestion is to check out the documentation, and google some more.

  2. #12
    Linux Newbie Pythagoras's Avatar
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    I can't modprobe usbcore. Can it be the problem?
    2b|!2b, that is the question

    If substraction add to multiplication you will get a division.

    GDB has a 'break' feature. Why doesn't it have a 'fix' too?

    Registered Linux User #437662

  3. #13
    Linux Newbie Pythagoras's Avatar
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    Usbcore is not a problem, it is built into kernel. So what's going on? Why device file exists but is unopenable?
    2b|!2b, that is the question

    If substraction add to multiplication you will get a division.

    GDB has a 'break' feature. Why doesn't it have a 'fix' too?

    Registered Linux User #437662

  4. #14
    Linux Newbie Pythagoras's Avatar
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    Just installed Mandriva 2007 to vmware and seen the same error.
    I think w9968 driver doesn't support my tuner
    2b|!2b, that is the question

    If substraction add to multiplication you will get a division.

    GDB has a 'break' feature. Why doesn't it have a 'fix' too?

    Registered Linux User #437662

  5. #15
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    same usb tv, same problem

    Hi,

    i have same usb tv box, avertv usb,

    i have same problem.
    i use ubuntu 8.04 hardy,

    when i connect my usb card,
    dmesg shows:
    [10472.367753] usb 1-1: USB disconnect, address 6
    [10472.367890] usb 1-1: Disconnecting W996[87]CF JPEG USB Dual Mode Camera...
    [10472.367897] usb 1-1: V4L device deregistered: /dev/video0
    [10474.043197] usb 1-1: new full speed USB device using uhci_hcd and address 7
    [10474.073363] usb 1-1: configuration #1 chosen from 1 choice
    [10474.084985] usb 1-1: W996[87]CF JPEG USB Dual Mode Camera detected
    [10474.085034] usb 1-1: V4L device registered as /dev/video0


    But wheneve any program, including cat /dev/video0 > tv0
    tries to access /dev/video0,

    following message is read in dmesg:
    [10577.275368] usb 1-1: No supported image sensor has been detected by the 'ovcamchip' module for the W996[87]CF JPEG USB Dual Mode Camera (/dev/video0). Make sure it is loaded *before* (re)connecting the camera.


    i think this is the problem.
    i see video0 when i do ls -l /dev/video0

    when i do:
    bvidinli@bvidinli-laptop:~$ cat /dev/video0 > tv0
    cat: /dev/video0: No such device
    bvidinli@bvidinli-laptop:~$

    it says no such device... note the error, no such device.. it finds file, but an error printed on dmesg, and no such device error is printed by calling program, here cat..

    it is same when i use zapping in ubuntu/gnome.
    i call zapping, it starts, cannot open /dev/video0, then error printed on dmesg as above...

    Can anybody help ?
    thanks.

  6. #16
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    thanks to Roxoff for his reply my pm,
    thanks for his/her remind of rules...

    Rules does not solve our problem sometime...
    What this forum is for if it does not solve it or try to solve?
    i am new in this forum, and i prefer a welcome, rather than a negative approach.

    i pm'ed to you because you may not be get notified of new post. i saw you as a professional of this subjec, so, asked for help..

    Previous posts in this thred did not solve my problem.
    and, i had a new situation where a new error is printed on dmesg, logs:
    usb 1-1: No supported image sensor has been detected by the 'ovcamchip' module for the W996[87]CF JPEG USB Dual Mode Camera (/dev/video0). Make sure it is loaded *before* (re)connecting the camera.

    if any of you has idea about this, please write,
    if no idea, i will try myself and enter it here when i solve...

    Thank you anyway...

  7. #17
    Linux Guru bigtomrodney's Avatar
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    Hi bvidinli,
    Just a couple of things to note. Generally asking questions via PM is considered against forum etiquette simply because the forum is here to share information. If you look for help in private then who benefits from that?

    The other point is this thread is this is a video tuner thread and it would seem your problem is with a webcam. To ensure that people are able to help you I would recommend starting a new thread describing your problem and giving as much detail as you can.

  8. #18
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    what i typed in pm is only: "please look at thread" in case user is not seeing changes to thread.

    my case is a usb tv tuner too. But the error is like a webcam.
    my case is just same as original poster.
    i added additional info with dmesg. other messages is same.
    i just cant access /dev/video0 with mplayer or any other tool.

    They all raise error: no such device...
    but when i ls -l /dev/video0, i see device is there..

    when i look to dmesg,
    this error is seen:
    usb 1-1: No supported image sensor has been detected by the 'ovcamchip' module for the W996[87]CF JPEG USB Dual Mode Camera (/dev/video0). Make sure it is loaded *before* (re)connecting the camera.

    my device is not a webcam. only driver is like a webcam..

    Thank you.

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