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Thread: Epson V370 Scanner usb problem

  1. #1

    Default Epson V370 Scanner usb problem

    Guys the Epson has been working ok, but refuses to wake up when required. Inserting the usb plug and starting xsane works ok. But after some time has passed it refuses to wake.
    The log below is very prominent on the net, but I have not yet solved this. The first two lines seem to indicate a problem when I start xsane.
    Then I disconnect and reconnect the usb plug and you can see the scanner is initialized. The bottom two lines indicate another problem which I am not attempting to address here.
    I cannot find any reference to usbfs in lsmod or using locate command. When I google I can see some people attempt a workaround using udev to isolate the problem.
    Any ideas on how I might resolve this ?

    linux-rz2v kernel: usb 9-3.3: usbfs: interface 0 claimed by usbfs while 'scanimage' sets config #1
    linux-rz2v kernel: usb 9-3.3: usbfs: interface 0 claimed by usbfs while 'scanimage' sets config
    linux-rz2v kernel: usb 9-3.3: USB disconnect, device number 16
    linux-rz2v kernel: usb 9-4: new high-speed USB device number 17 using xhci_hcd
    linux-rz2v kernel: usb 9-4: New USB device found, idVendor=04b8, idProduct=014a
    linux-rz2v kernel: usb 9-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
    linux-rz2v kernel: usb 9-4: Product: EPSON Perfection V37/V370
    linux-rz2v kernel: usb 9-4: Manufacturer: EPSON
    linux-rz2v kernel: usb 9-4: ep 0x81 - rounding interval to 128 microframes, ep desc says 255 microframes
    linux-rz2v kernel: usb 9-4: ep 0x2 - rounding interval to 128 microframes, ep desc says 255 microframes

  2. #2
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    Default Re: Epson V370 Scanner usb problem

    uys the Epson has been working ok, but refuses to wake up when required. Inserting the usb plug and starting xsane works ok. But after some time has passed it refuses to wake.
    So, the scanner is working is initially , but some power management 'feature' makes the USB port (or scanner) go to sleep?
    I cannot find any reference to usbfs in lsmod or using locate command.
    The USB files system is a virtual filesystem, dynamically generated and managed by the kernel. (IIRC, the usbcore module is responsible, but usually compiled as part of the kernel with openSUSE.)

  3. #3
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    Default Re: Epson V370 Scanner usb problem

    BTW, the 'config #1' message is explained here:

    https://forums.opensuse.org/english/...ml#post2592138

  4. #4
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    Default Re: Epson V370 Scanner usb problem

    Now that I've found the manual

    http://www.google.co.nz/url?sa=t&rct...58187178,d.dGI

    I see the the sleep mode is a built-in power-saving feature

    Default Delay Times for Power Management for EPSON Products

    This product will enter sleep mode after a period of nonuse. The time interval has been set at the factory tothe product meets Energy Star Standards of energy effiency, and cannot be modified by the consumer.

  5. #5

    Default Re: Epson V370 Scanner usb problem

    Quote Originally Posted by deano_ferrari View Post
    BTW, the 'config #1' message is explained here:

    https://forums.opensuse.org/english/...ml#post2592138
    Yes, an identical scenario to mine.

    I tried switching the unit off overnight, using the Scanner on/off switch. This did not amount to anything. When I turned it on this morning I came up against the same problem. Also tried using skanlite from the command line. This returned a log very similar to the earlier one.

    kernel: usb 9-3.3: usbfs: interface 0 claimed by usbfs while 'KSaneIface::Fin' sets config #1
    kernel: usb 9-3.3: usbfs: interface 0 claimed by usbfs while 'skanlite' sets config #1

  6. #6

    Default Re: Epson V370 Scanner usb problem

    Quote Originally Posted by deano_ferrari View Post
    So, the scanner is working is initially , but some power management 'feature' makes the USB port (or scanner) go to sleep?

    The USB files system is a virtual filesystem, dynamically generated and managed by the kernel. (IIRC, the usbcore module is responsible, but usually compiled as part of the kernel with openSUSE.)
    Yes but how to deal with it. Googling about this shows some people actually recompiling the kernel with usbfs turned off. I do not really want to go down this path.

  7. #7
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    Default Re: Epson V370 Scanner usb problem

    cabernet wrote:

    >
    > Guys the Epson has been working ok, but refuses to wake up when
    > required. Inserting the usb plug and starting xsane works ok. But after
    > some time has passed it refuses to wake.
    > The log below is very prominent on the net, but I have not yet solved
    > this. The first two lines seem to indicate a problem when I start xsane.
    >
    > Then I disconnect and reconnect the usb plug and you can see the scanner
    > is initialized. The bottom two lines indicate another problem which I am
    > not attempting to address here.
    > I cannot find any reference to usbfs in lsmod or using locate command.
    > When I google I can see some people attempt a workaround using udev to
    > isolate the problem.
    > Any ideas on how I might resolve this ?
    >
    > linux-rz2v kernel: usb 9-3.3: usbfs: interface 0 claimed by usbfs while
    > 'scanimage' sets config #1
    > linux-rz2v kernel: usb 9-3.3: usbfs: interface 0 claimed by usbfs while
    > 'scanimage' sets config
    > linux-rz2v kernel: usb 9-3.3: USB disconnect, device number 16
    > linux-rz2v kernel: usb 9-4: new high-speed USB device number 17 using
    > xhci_hcd
    > linux-rz2v kernel: usb 9-4: New USB device found, idVendor=04b8,
    > idProduct=014a
    > linux-rz2v kernel: usb 9-4: New USB device strings: Mfr=1, Product=2,
    > SerialNumber=0
    > linux-rz2v kernel: usb 9-4: Product: EPSON Perfection V37/V370
    > linux-rz2v kernel: usb 9-4: Manufacturer: EPSON
    > linux-rz2v kernel: usb 9-4: ep 0x81 - rounding interval to 128
    > microframes, ep desc says 255 microframes
    > linux-rz2v kernel: usb 9-4: ep 0x2 - rounding interval to 128
    > microframes, ep desc says 255 microframes
    >
    >



    I find installing the Epson drivers and the iscan programs the Epson V370
    works fine on two of my OpenSuse 12.2 computers. I then use Image Scan to
    do the scanning.
    --
    OpenSuse

  8. #8

    Default Re: Epson V370 Scanner usb problem

    Some progress to report.

    Following some details that were googled from elsewhere I created a file
    50-epson.rules

    Inside this I have the following line.
    SUBSYSTEM=="usb", ATTRS{idVendor}=="04b8", ATTRS{idProduct}=="014a", MODE:="666", GROUP="users"

    Starting xsane now causes the Epson V370 to wake up ok and no logs appear at all. Trying to use a usb 3.0 port does not work. Usb 2.0 and its ehci-pci driver are required.

    I am still testing this.

  9. #9
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    Default Re: Epson V370 Scanner usb problem

    Quote Originally Posted by cabernet View Post
    Some progress to report.

    Following some details that were googled from elsewhere I created a file
    50-epson.rules

    Inside this I have the following line.
    SUBSYSTEM=="usb", ATTRS{idVendor}=="04b8", ATTRS{idProduct}=="014a", MODE:="666", GROUP="users"

    Starting xsane now causes the Epson V370 to wake up ok and no logs appear at all. Trying to use a usb 3.0 port does not work. Usb 2.0 and its ehci-pci driver are required.

    I am still testing this.
    That's interesting. FWIW, the sane-backends package provides /etc/udev/rules.d/55-libsane.rules which has rules for many scanner models (including some Epson Perfection models) that take the form like the following
    Code:
    # Epson Perfection V300 Photo
    ATTR{idVendor}=="04b8", ATTR{idProduct}=="0131", MODE="0664", GROUP="lp", ENV{libsane_matched}="yes"
    so it probably would also work to use
    Code:
    ATTR{idVendor}=="04b8", ATTR{idProduct}=="014a", MODE="0664", GROUP="lp", ENV{libsane_matched}="yes"
    with the user having membership of the 'lp' group.

  10. #10
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    Default Re: Epson V370 Scanner usb problem

    Trying to use a usb 3.0 port does not work. Usb 2.0 and its ehci-pci driver are required.

    I am still testing this.
    You may need to file a bug report for that.

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