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bktr (4)
>> bktr (4) ( FreeBSD man: Специальные файлы /dev/* )
BSD mandoc
NAME
bktr
- Brooktree Bt848/849/878/879 and Pinnacle PCTV video capture driver
SYNOPSIS
device bktr
device iicbusdevice iicbbdevice 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
driver should support most video cards based on the
Brooktree Bt848/849/878/879 Video Capture Chip
Also supported are most
Pinnacle PCTV
video cards.
Furthermore, the driver supports
FM Radio
if the tuner supports it.
The driver currently supports the following features:
PCI to PCI dma transfer
clipping
yuv
rgb16
rgb24
rgb32
On the supported 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
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.
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 Captivator 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 23 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
ASKEY_DYNALINK_MAGIC_TVIEW
14
LEADTEK
15
TERRATVPLUS
16
IO_BCTV3
17
AOPEN_VA1000
18
PINNACLE_PCTV_RAVE
19
PIXELVIEW_PLAYTV_PAK
20
TERRATVALUE
21
PIXELVIEW_PLAYTV_PRO_REV_4C
22
Bt848_MAX
23
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 16 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
MT2032
14
LG_TPI8PSB12P_PAL
15
Bt848_MAX
16
HARDWARE
The
driver supports video capture cards based on the
Brooktree Bt848/849/878/879 chips, as well as
Pinnacle PCTV cards, including:
AOpen VA1000
AVerMedia AVerTV Studio
AVerMedia TF/FM-98
ATI TV Wonder VE
Hauppauge WinCast/TV
Hauppauge WinTV-Go-FM
Hauppauge WinTV-pci
Hauppauge WinTV-radio
Intel Smart Video Recorder III
KWORLD PCI TV Tuner
Miro PC TV
Pinnacle PCTV Pro
Pinnacle PCTV Rave
PixelView PlayTV PAK
PixelView PlayTV Pro (rev 4C, 9D)
SIGMA TV II
STB TV PCI Television Tuner
Super TV Tuner
TerraTec TValue
V-Stream XPERT TV-PVR 878
Video Highway XTreme
VideoLogic Captivator PCI
FILES
/usr/share/examples/meteor
Examples of what you can do with the (similarly designed) Meteor driver.
/usr/ports/multimedia/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.
