v4l - where are dmxdev.h and other files?

[Rick Bilonick]

I am trying to compile video4linux driver in Ubuntu 8.10. The driver I'm
trying to "make" is em28xx. I've installed all the dvb and usb packages
and the header files. But I always get errors saying it can't find
dmxdev.h, dvb_demux.h, dvb_net.h, and dvb_frontend.h. Others have
reported successfully compiling v4l-dvb-kernel but I'm not having any
luck.

Rick B.