Mmap seems not to working...

video_mmap in:
/usr/src/linux-2.2.15-pristine/drivers/char/videodev.c

looks entirely different.

char/mem.c looks closer, but different... This cannot be the mmap
device driver routine, though (name different)

http://www.uwsg.indiana.edu/hypermail/linux/kernel/0006.1/1577.html
http://www.uwsg.indiana.edu/hypermail/linux/kernel/0006.1/1665.html
http://www.uwsg.indiana.edu/hypermail/linux/kernel/0006.1/1688.html
