Description from softpedia:
Teralogic 880 HDTV decoder Linux driver 0.2.3
Remember that this driver has no video capture capability. The kernel module
uses three devices per TL880 card in /dev/tl880 to allow all users to mmap the
memory regions of the TL880, or use the ioctl interface to control the card.
The tools are then used to upload the firmware, set external sync, turn on color
bars, display a mouse cursor, and tweak the OSD.