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USB ports disabled

Dominic
Prodigy 90 points

Hi,

I've got a problem that keeps popping up.

If I change something in the kernel source and put the changed kernel image onto my board, the USB ports don't work anymore. This happened as I changed the splash screen for example, which in my opinion doesn't have anything to do with USB.

Does anyone have an idea what the problem could be?

Board: TAM3517 Twister Board

Kernel: Linux-2.6.37

OS: Android Gingerbread 2.3.4

thanks in advance

Dominic

  • 0
    Prodigy 90 points

    Here is some new information on my problem.

    I've got the sources, including x-loader, u-boot and kernel, from Technexion. When I try the complete image they provide, USB and all devices connected work. The same, if I use the build.sh script to build all 4 sources and don't change anything. However if I just compile the kernel (without making any changes) and put the uImage onto the board, the USB devices aren't recognized at all. As USB device I'm using a Microsoft IntelliMouse Explorer 3.0 and sometimes a USB keyboard.

    These are the boot messages with USB working ( 8764.USB.txt ) and the other where it's not working ( 8831.noUSB.txt ).

    Maybe now someone can help me, or at least give a push in the right direction.

    Dominic

  • 0 in reply to Dominic
    TI__Guru**** 175891 points

    compare /proc/config.gz in the two different uImage to see if there is any kernel config option difference.

  • 0 in reply to Bin Liu
    Prodigy 90 points

    Thanks for the hint, but there is no difference in the two configs.