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Thread: unable to connect USB and 'device descriptor read/64', error in ubuntu

  1. #1
    Join Date
    Dec 2011
    Posts
    52

    unable to connect USB and 'device descriptor read/64', error in ubuntu

    i am using Ubuntu 8.04 and when i was inserting the pen drive it was not supporting in my USB connections. i tested my pen drive on other laptop but it was supporting. i had other PC with same operating system and there was the same case. i am not understanding teh problem please help in this issue. dmesg is showing the following
    [ 563.332000] end_request: I/O error, dev sdb, sector 60796
    [ 563.332000] printk: 24 messages suppressed.
    [ 563.332000] Buffer I/O error on device sdb1, logical block 60745
    [ 717.556000] usb 2-4: new high speed USB device using ehci_hcd and address 12
    [ 717.668000] usb 2-4: device descriptor read/64, error -71
    [ 717.884000] usb 2-4: device descriptor read/64, error -71
    [ 718.100000] usb 2-4: new high speed USB device using ehci_hcd and address 13
    [ 718.212000] usb 2-4: device descriptor read/64, error -71
    [ 718.428000] usb 2-4: device descriptor read/64, error -71
    [ 718.644000] usb 2-4: new high speed USB device using ehci_hcd and address 14
    [ 719.052000] usb 2-4: device not accepting address 14, error -71
    [ 719.164000] usb 2-4: new high speed USB device using ehci_hcd and address 15
    [ 719.572000] usb 2-4: device not accepting address 15, error -71
    [ 801.752000] usb 2-4: new high speed USB device using ehci_hcd and address 16
    [ 801.864000] usb 2-4: device descriptor read/64, error -71
    [ 802.080000] usb 2-4: device descriptor read/64, error -71
    [ 802.296000] usb 2-4: new high speed USB device using ehci_hcd and address 17
    [ 802.408000] usb 2-4: device descriptor read/64, error -71
    [ 802.624000] usb 2-4: device descriptor read/64, error -71
    [ 802.840000] usb 2-4: new high speed USB device using ehci_hcd and address 18
    [ 803.248000] usb 2-4: device not accepting address 18, error -71
    [ 803.360000] usb 2-4: new high speed USB device using ehci_hcd and address 19
    [ 803.768000] usb 2-4: device not accepting address 19, error -71

  2. #2
    Join Date
    Aug 2011
    Posts
    322

    re: unable to connect USB and 'device descriptor read/64', error in ubuntu

    here, if you are using ubantu, i should tell you that , you should disable CONFIG_USB_SUSPEND which can be done by having a reload of the module "usbcore" with the option "autosuspend=-1.".unloading the usbcore once the system is booted is a very tricky and hard process to carry with.

  3. #3
    Join Date
    Aug 2011
    Posts
    308

    re: unable to connect USB and 'device descriptor read/64', error in ubuntu

    it's a really tough job to hard test USB stuff in a virtual machine and there are instructions to disable CONFIG_USB_SUSPEND without reloading usbcore. here you should make a try for this.

    it usually comes with usbcore (CONFIG_USB) compiled as a module and CONFIG_USB_SUSPEND
    enabled (at least on Ubuntu).

    you should follow the below mentioned techniques to disable autosuspend
    try to recompile kernel with no CONFIG_USB_SUSPEND

    make a configuration of /etc/modprobe.d/ with a file containing
    "options usbcore autosuspend=-1"
    depending on your kernel you can make a setting to 0

    If your system requires the modprobe configuration file above, and if your
    system makes use of initrd (probably does) then you will require to rebuild the
    initrd for your kernel .this will have some effect on it.

  4. #4
    Join Date
    Aug 2011
    Posts
    380

    re: unable to connect USB and 'device descriptor read/64', error in ubuntu

    in my case, i made an attempt with the modprobe thing with the help of camera and there was some solution to it. i think this would be the problem and it will be sorted out.

  5. #5
    Join Date
    Aug 2011
    Posts
    308

    re: unable to connect USB and 'device descriptor read/64', error in ubuntu

    according to me the possible solution to this could be by trying with the terminal type: echo -1 >/sys/module/usbcore/parameters/autosuspend and afterward log in as root . simply reboot after this.

  6. #6
    Join Date
    Jul 2011
    Posts
    229

    re: unable to connect USB and 'device descriptor read/64', error in ubuntu

    i think , you should check the total output of 'dmesg | tail' after you plug in the device. and in short as root:
    echo Y > /sys/module/usbcore/parameters/old_scheme_first . i think this will work in your case.

  7. #7
    Join Date
    Dec 2011
    Posts
    54

    Re: unable to connect USB and 'device descriptor read/64', error in ubuntu

    i am with the same problem . please provide some other solution. i think here, i should revert myself to windows as it is supporting me with all the USB connections.

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