Problem with kernel 2.6.11 r5

Hi, i am having probs with a new gentoo installation with my wusb11 2.8. 
(Previously worked with 2.6.10 using this driver). Pls advice.

The following is the dmesg output
dmesg

usb 3-4: new full speed USB device using ohci_hcd and address 3
at76c503: Unknown symbol iw_handler_set_spy
at76c503: Unknown symbol iw_handler_get_thrspy
at76c503: Unknown symbol wireless_send_event
at76c503: Unknown symbol iw_handler_get_spy
at76c503: Unknown symbol wireless_spy_update
at76c503: Unknown symbol iw_handler_set_thrspy
at76c505_rfmd2958: Unknown symbol at76c503_delete_device
at76c505_rfmd2958: Unknown symbol at76c503_do_probe

A modprobe shows the following:
modprobe -v at76c503-rfmd

insmod 
/lib/modules/2.6.11-gentoo-r5/kernel/drivers/net/wireless/at76c503/at76c503.ko
WARNING: Error inserting at76c503 
(/lib/modules/2.6.11-gentoo-r5/kernel/drivers/net/wireless/at76c503/at76c503.ko): 
Unknown symbol in module, or unknown parameter (see dmesg)
insmod 
/lib/modules/2.6.11-gentoo-r5/kernel/drivers/net/wireless/at76c503/at76c503-rfmd.ko
FATAL: Error inserting at76c503_rfmd 
(/lib/modules/2.6.11-gentoo-r5/kernel/drivers/net/wireless/at76c503/at76c503-rfmd.ko): 
Unknown symbol in module, or unknown parameter (see dmesg)

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