modprobe bttv fails — Video for Linux

Hi! I hope the gurus here can spare a minute to help me. I can't insmod
bttv. My TV card is sharing an IRQ as illustrated below, but it seems
content with that. Where should I be looking to solve this problem?
Thanks,

John

[root@localhost doc]# modprobe bttv
/lib/modules/2.4.3-20mdk/kernel/drivers/media/video/bttv.o.gz: init_module: 
No such device
Hint: insmod errors can be caused by incorrect module parameters, including 
invalid IO or IRQ parameters
/lib/modules/2.4.3-20mdk/kernel/drivers/media/video/bttv.o.gz: insmod 
/lib/modules/2.4.3-20mdk/kernel/drivers/media/video/bttv.o.gz failed
/lib/modules/2.4.3-20mdk/kernel/drivers/media/video/bttv.o.gz: insmod bttv 
failed

  Bus  0, device   9, function  0:
    Multimedia video controller: Brooktree Corporation Bt879(?) Video Capture 
(rev 2).
      IRQ 5.
      Master Capable.  Latency=32.  Min Gnt=16.Max Lat=40.
      Prefetchable 32 bit memory at 0x7ffdf000 [0x7ffdffff].
  Bus  0, device   9, function  1:
    Multimedia controller: Brooktree Corporation Bt878 (rev 2).
      IRQ 5.
      Master Capable.  Latency=32.  Min Gnt=4.Max Lat=127.
      Prefetchable 32 bit memory at 0x10000000 [0x10000fff].