Re: Symbol not found. Error while inserting usb hcd module

On 9/8/07, Kaustubh Ashtekar <[email protected]> wrote:
> I am currently working on a i.MX21 ARM9 board, which has a USB host port.
> After some searching I got the host HCD driver for the processor. I compiled
> the driver (and also the USB subsystem) as a modules. After Linux booted
> properly on the board I then did insmod on the modules one by one according
> To the dependencies as given in the modules.dep file as given below
>
> /lib/modules/2.6.16QCam-vc/kernel/drivers/usb/core/usbcore.ko:
> /lib/modules/2.6.16QCam-vc/kernel/drivers/usb/storage/libusual.ko:
> /lib/modules/2.6.16QCam-vc/kernel/drivers/usb/core/usbcore.ko
> /lib/modules/2.6.16QCam-vc/kernel/drivers/usb/storage/usb-storage.ko:
> /lib/modules/2.6.16QCam-vc/kernel/drivers/usb/storage/libusual.ko
> /lib/modules/2.6.16QCam-vc/kernel/drivers/usb/core/usbcore.ko
> /lib/modules/2.6.16QCam-vc/kernel/drivers/usb/mon/usbmon.ko:
> /lib/modules/2.6.16QCam-vc/kernel/drivers/usb/core/usbcore.ko
> /lib/modules/2.6.16QCam-vc/kernel/drivers/usb/misc/usbtest.ko:
> /lib/modules/2.6.16QCam-vc/kernel/drivers/usb/core/usbcore.ko
> /lib/modules/2.6.16QCam-vc/kernel/drivers/usb/host/imx21-hcd.ko:
> /lib/modules/2.6.16QCam-vc/kernel/drivers/usb/core/usbcore.ko
>
> All the other modules load properly. However, when I do insmod on
> 'imx21-hcd.ko' at last then it gives the following error:
>
> imx21_hcd: Unknown symbol platform_driver_unregister
> imx21_hcd: Unknown symbol platform_driver_register
> insmod: cannot insert 'imx21-hcd.ko': Unknown symbol in module (-1): No such
> file or directory
>
> Has anybody come across this problem before?
>

Would you like to check that does your driver code include
<linux/platform_device.h> or not?

> Thanks and Regards,
> Ashtekar Kaustubh
>
>
>
>
>
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