BKTR(4)

NAME
brooktree - video capture driver

SYNOPSIS
device bktr0

DESCRIPTION
The bktr driver provides support for PCI video capture on low cost, high performance boards. The driver is heavily based on the Matrox Meteor driver. The bktr driver should support most video cards based on the Brooktree Bt848 Video Capture Chip.

Specifically, the following cards are known to work:
Hauppage Wincast TV
STB TV PCI Television Tuner
Miro PC TV
Intel Smart Video Recorder III

The driver currently supports the following features:
PCI to PCI dma transfer
clipping
yuv
rgb16
rgb24
rgb32

The following kernel parameters may be used to further configure the driver:

options BROOKTREE_ALLOC_PAGES=xxx specifies the number of contiguous pages to allocate when successfully probed. The default number of pages allocated by the kernel is 216. This means that there are (216*4096) bytes available for use.

AUTHOR
This driver is based on the work of Jim Lowe <james@miller.cs.uwm.edu>, Mark Tinguely <tinguely@plains.nodak.edu>, Amancio Hasty <hasty@star-gate.com> and a bunch of other people.

FILES
/usr/share/examples/meteor
    Examples of what you can do with the (similarly designed) Meteor driver.
/usr/ports/graphics/fxtv
    A display program utilizing the bktr driver - requires that The X Window System and The Ports Collection also be installed.

SEE ALSO
meteor(4)

HISTORY
The brooktree driver first appeared in FreeBSD 2.2.