While doing a randconfig earlier make failed with this:

  AR      arch/x86/lib/lib.a
  LD      vmlinux.o
  MODPOST vmlinux.o
  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
drivers/built-in.o: In function `uvc_input_cleanup':
/data/kernels/build-test/linux-2.6.26-rc9/drivers/media/video/uvc/uvc_status.c:67:
undefined reference to `input_unregister_device'
drivers/built-in.o: In function `uvc_input_init':
/data/kernels/build-test/linux-2.6.26-rc9/drivers/media/video/uvc/uvc_status.c:32:
undefined reference to `input_allocate_device'
/data/kernels/build-test/linux-2.6.26-rc9/drivers/media/video/uvc/uvc_status.c:52:
undefined reference to `input_register_device'
/data/kernels/build-test/linux-2.6.26-rc9/drivers/media/video/uvc/uvc_status.c:59:
undefined reference to `input_free_device'
drivers/built-in.o: In function `input_report_key':
/data/kernels/build-test/linux-2.6.26-rc9/include/linux/input.h:1269:
undefined reference to `input_event'
make: *** [.tmp_vmlinux1] Error 1

The config file is attached

-Stoyan G