missing module avm b1_pci

[nope2dope]

Well,
I am trying to install my AVM B1 active ISDN card, it is supported by the kernel, but I cannot find the menuitem in my make menuconfig.
It is supposed to be in DeviveDrivers--> ISDN subsystem--> Active AVM Cards but there is only Support AVM Cards.
I need a module named b1pci.ko but it will never be build if it is not chosen somewhere.
What's the deal about it???
I am using the 2.6.4.
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...keine Experimente.