#here my output from lspci |grep Techwell
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01:02.0 Multimedia video controller: Techwell Inc. TW6802 multimedia video card (rev 10)
01:02.1 Multimedia controller: Techwell Inc. TW6802 multimedia other device (rev 10)
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###General
Source Type : local
Function : monitor
Maximum FPS : 30
Alarm Maximum FPS : 30
Reference Image Blend %g : 7
###Source
Device Path /dev/video0
Capture Method Video for Linux Version 2
Device Channel 4
Device Format PAL B
Capture Palette RGB24
Capture Width (pixels) 320
Capture Height (pixels) 240
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Video Device: /dev/video0
General Capabilities
Driver: tw68
Card: GENERIC
Bus: PCI:0000:01:02.0
Version: 0.0.4
Type: 0x5000011
Supports video capture (X)
Does not support video output
Does not support frame buffer overlay
Supports VBI capture
Does not support VBI output
Does not support sliced VBI capture
Does not support sliced VBI output
Does not support video output overlay
Does not have tuner
Does not have audio in and/or out
Does not have radio
Supports read/write i/o (X)
Does not support async i/o
Supports streaming i/o (X)
Standards:
NTSC
NTSC-M
NTSC-M-JP
NTSC-M-KR
NTSC-443
PAL
PAL-BG
PAL-H
PAL-I
PAL-DK
PAL-M
PAL-N
PAL-Nc
PAL-60
SECAM
SECAM-B
SECAM-G
SECAM-H
SECAM-DK
SECAM-L
SECAM-Lc
Formats:
15 bpp RGB, le (RGBO)
15 bpp RGB, be (RGBQ)
16 bpp RGB, le (RGBP)
16 bpp RGB, be (RGBR)
24 bpp RGB, le (BGR3)
24 bpp RGB, be (RGB3)
32 bpp RGB, le (BGR4)
32 bpp RGB, be (RGB4)
4:2:2 packed, YUYV (YUYV)
4:2:2 packed, UYVY (UYVY)
YU12 (YU12)
YV12 (YV12)
Crop Capabilities
Bounds: 720 x 240
Default: 720 x 241
Current: 720 x 241
Inputs: 4
Input 0
Name: Composite1
Type: Camera
Audioset: 00000001
Standards: 0xffffff
Power on (X)
Signal detected (X)
Colour Signal detected
Horizontal Lock detected
Input 1
Name: Composite2
Type: Camera
Audioset: 00000001
Standards: 0xffffff
Power on (X)
Signal detected (X)
Colour Signal detected
Horizontal Lock detected
Input 2
Name: Composite3
Type: Camera
Audioset: 00000001
Standards: 0xffffff
Power on (X)
Signal detected (X)
Colour Signal detected
Horizontal Lock detected
Input 3
Name: Composite4
Type: Camera
Audioset: 00000001
Standards: 0xffffff
Power on (X)
Signal detected (X)
Colour Signal detected
Horizontal Lock not detected
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04/20/2010 09:48:30.036479 zmdc[6340].INF ['zmc -d /dev/video0' starting at 10/04/20 09:48:30, pid = 6651]
04/20/2010 09:48:30.078897 zmdc[6340].ERR ['zmc -d /dev/video0' exited abnormally, exit status 6]
04/20/2010 09:53:50.021183 zmdc[6340].INF [Starting pending process, zmc -d /dev/video0]
04/20/2010 09:53:50.022623 zmdc[6340].INF ['zmc -d /dev/video0' starting at 10/04/20 09:53:50, pid = 6761]
04/20/2010 09:53:50.066403 zmdc[6340].ERR ['zmc -d /dev/video0' exited abnormally, exit status 6]