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BKTR(4)		       FreeBSD Kernel Interfaces Manual		       BKTR(4)

NAME
     brooktree -- video	capture	driver

SYNOPSIS
     device bktr

     device iicbus
     device iicbb
     device smbus

DESCRIPTION
     The bktr driver provides support for PCI video capture and	VBI capture on
     low cost, high performance	boards.	 The driver is based on	the Matrox
     Meteor driver and uses the	same API.  The bktr driver should support most
     video cards based on the Brooktree	Bt848/849/878/879 Video	Capture	Chip.
     The driver	also supports FM Radio if the tuner supports it.

     Specifically, the following cards are known to work:

	   Hauppauge Wincast TV	and WinTV/PCI
	   STB TV PCI Television Tuner
	   Miro	PC TV
	   Intel Smart Video Recorder III
	   AverMedia cards
	   Video Highway XTreme
	   VideoLogic Captivator PCI

     The driver	currently supports the following features:

	   PCI to PCI dma transfer
	   clipping
	   yuv
	   rgb16
	   rgb24
	   rgb32

     On	these cards, tuners and	other components are interconnected with an
     I2C bus.  The Brooktree848	chips act as a master device on	the bus	to
     control them.  Therefore, iicbus(4), iicbb(4) and smbus(4)	controller
     declarations are mandatory	to activate bktr support.

     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.

     options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
     options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
     One of these options can be used to set the default video format for the
     driver.  This fixed random	hangs and lockups with the VideoLogic Captiva-
     tor PCI card.

     The following sysctls may be used to further configure the	driver:

     sysctl hw.bt848.card=nnnn This can	be used	to override the	card make
     which was detected	at boot	time.  `nnnn' is set to	an integer from	1 to
     13	taken from the following table:

     MIRO		     1
     HAUPPAUGE		     2
     STB		     3
     INTEL		     4
     IMS_TURBO		     5
     AVER_MEDIA		     6
     OSPREY		     7
     NEC_PK		     8
     IO_GV		     9
     FLYVIDEO		     10
     ZOLTRIX		     11
     KISS		     12
     VIDEO_HIGHWAY_XTREME    13

     sysctl hw.bt848.tuner=nnnn	This can be used to override the tuner make
     which was detected	at boot	time.  `nnnn' is set to	an integer from	1 to
     13	taken from the following table:

     NO_TUNER		     0
     TEMIC_NTSC		     1
     TEMIC_PAL		     2
     TEMIC_SECAM	     3
     PHILIPS_NTSC	     4
     PHILIPS_PAL	     5
     PHILIPS_SECAM	     6
     TEMIC_PALI		     7
     PHILIPS_PALI	     8
     PHILIPS_FR1236_NTSC     9	     /*	These have FM Radio support */
     PHILIPS_FR1216_PAL	     10	     /*	These have FM Radio support */
     PHILIPS_FR1236_SECAM    11	     /*	These have FM Radio support */
     ALPS_TSCH5		     12
     ALPS_TSBH1		     13

AUTHORS
     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>, Roger Hardiman <roger@FreeBSD.org> and a bunch of
     other people.

FILES
     /usr/share/examples/meteor	 Examples of what you can do with the (simi-
				 larly designed) Meteor	driver.
     /usr/ports/graphics/fxtv	 A TV and Camera display program utilizing the
				 bktr driver - requires	that The X Window
				 System	and The	Ports Collection also be
				 installed.
     /usr/ports/misc/alevt	 A program to capture and display Teletext
				 (VideoText) pages - requires that The X
				 Window	System and The Ports Collection	also
				 be installed.
     /usr/ports/audio/xmradio	 An FM Radio Tuner for cards which have	an FM
				 Radio tuner fitted. - requires	that The X
				 Window	System and The Ports Collection	also
				 be installed.	It also	requires Motif or the
				 lesstif port.

SEE ALSO
     meteor(4)

HISTORY
     The brooktree driver first	appeared in FreeBSD 2.2.

FreeBSD	10.1		       January 28, 1998			  FreeBSD 10.1

NAME | SYNOPSIS | DESCRIPTION | AUTHORS | FILES | SEE ALSO | HISTORY

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