$ 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