$ sudo modprobe cx88-dvb
WARNING: Error inserting dvb_core (/lib/modules/2.6.20-gentoo-r5/kernel/drivers/media/dvb/dvb-core/dvb-core.ko): Invalid module format
WARNING: Error inserting v4l1_compat (/lib/modules/2.6.20-gentoo-r5/kernel/drivers/media/video/v4l1-compat.ko): Invalid module format
WARNING: Error inserting v4l2_common (/lib/modules/2.6.20-gentoo-r5/kernel/drivers/media/video/v4l2-common.ko): Invalid module format
WARNING: Error inserting videodev (/lib/modules/2.6.20-gentoo-r5/kernel/drivers/media/video/videodev.ko): Invalid module format




dmesg:

dvb_core: exports duplicate symbol dvb_generic_open (owned by kernel)
v4l1_compat: exports duplicate symbol v4l_compat_translate_ioctl (owned by kernel)
v4l2_common: exports duplicate symbol v4l2_norm_to_name (owned by kernel)
videodev: exports duplicate symbol video_register_device (owned by kernel)
cx8802_unregister_driver() ->unregistering driver type=dvb
CORE cx88[0]: subsystem: 1002:a101, board: ATI HDTV Wonder [card=34]
dvb_core: exports duplicate symbol dvb_generic_open (owned by kernel)
v4l1_compat: exports duplicate symbol v4l_compat_translate_ioctl (owned by kernel)
v4l2_common: exports duplicate symbol v4l2_norm_to_name (owned by kernel)
videodev: exports duplicate symbol video_register_device (owned by kernel)
cx2388x cx88-mpeg Driver Manager version 0.0.6 loaded
CORE cx88[0]: subsystem: 1002:a101, board: ATI HDTV Wonder [card=34,autodetected]
TV tuner 68 at 0x1fe, Radio tuner -1 at 0x1fe
cx88[0]/2: cx2388x 8802 Driver Manager
ACPI: PCI Interrupt 0000:02:01.2[A] -> GSI 16 (level, low) -> IRQ 16
cx88[0]/2: found at 0000:02:01.2, rev: 5, irq: 16, latency: 64, mmio: 0xfb000000
cx2388x dvb driver version 0.0.6 loaded
cx8802_register_driver() ->registering driver type=dvb access=shared
CORE cx88[0]: subsystem: 1002:a101, board: ATI HDTV Wonder [card=34]
cx88[0]/2: cx2388x based dvb card
dvb_core: exports duplicate symbol dvb_generic_open (owned by kernel)
v4l1_compat: exports duplicate symbol v4l_compat_translate_ioctl (owned by kernel)
v4l2_common: exports duplicate symbol v4l2_norm_to_name (owned by kernel)
videodev: exports duplicate symbol video_register_device (owned by kernel)
nxt200x: NXT2004 Detected
DVB: registering new adapter (cx88[0]).
DVB: registering frontend 0 (Nextwave NXT200X VSB/QAM frontend)...