-Contributors to bttv:
+Contributors to bttv:
Michael Chu <mmchu@pobox.com>
AverMedia fix and more flexible card recognition
Chris Kleitsch
Hardware I2C
-
-Gerd Knorr <kraxel@cs.tu-berlin.de>
+
+Gerd Knorr <kraxel@cs.tu-berlin.de>
Radio card (ITT sound processor)
bigfoot <bigfoot@net-way.net>
+ many more (please mail me if you are missing in this list and would
- like to be mentioned)
+ like to be mentioned)
- ET61X[12]51 PC Camera Controllers
- Driver for Linux
- =================================
+ ET61X[12]51 PC Camera Controllers
+ Driver for Linux
+ =================================
- - Documentation -
+ - Documentation -
Index
Type: short array (min = 0, max = 64)
Syntax: <-1|n[,...]>
Description: Specify V4L2 minor mode number:
- -1 = use next available
- n = use minor number n
- You can specify up to 64 cameras this way.
- For example:
- video_nr=-1,2,-1 would assign minor number 2 to the second
- registered camera and use auto for the first one and for every
- other camera.
+ -1 = use next available
+ n = use minor number n
+ You can specify up to 64 cameras this way.
+ For example:
+ video_nr=-1,2,-1 would assign minor number 2 to the second
+ registered camera and use auto for the first one and for every
+ other camera.
Default: -1
-------------------------------------------------------------------------------
Name: force_munmap
Type: bool array (min = 0, max = 64)
Syntax: <0|1[,...]>
Description: Force the application to unmap previously mapped buffer memory
- before calling any VIDIOC_S_CROP or VIDIOC_S_FMT ioctl's. Not
- all the applications support this feature. This parameter is
- specific for each detected camera.
- 0 = do not force memory unmapping
- 1 = force memory unmapping (save memory)
+ before calling any VIDIOC_S_CROP or VIDIOC_S_FMT ioctl's. Not
+ all the applications support this feature. This parameter is
+ specific for each detected camera.
+ 0 = do not force memory unmapping
+ 1 = force memory unmapping (save memory)
Default: 0
-------------------------------------------------------------------------------
Name: frame_timeout
Type: uint array (min = 0, max = 64)
Syntax: <n[,...]>
Description: Timeout for a video frame in seconds. This parameter is
- specific for each detected camera. This parameter can be
- changed at runtime thanks to the /sys filesystem interface.
+ specific for each detected camera. This parameter can be
+ changed at runtime thanks to the /sys filesystem interface.
Default: 2
-------------------------------------------------------------------------------
Name: debug
Type: ushort
Syntax: <n>
Description: Debugging information level, from 0 to 3:
- 0 = none (use carefully)
- 1 = critical errors
- 2 = significant informations
- 3 = more verbose messages
- Level 3 is useful for testing only, when only one device
- is used at the same time. It also shows some more informations
- about the hardware being detected. This module parameter can be
- changed at runtime thanks to the /sys filesystem interface.
+ 0 = none (use carefully)
+ 1 = critical errors
+ 2 = significant informations
+ 3 = more verbose messages
+ Level 3 is useful for testing only, when only one device
+ is used at the same time. It also shows some more informations
+ about the hardware being detected. This module parameter can be
+ changed at runtime thanks to the /sys filesystem interface.
Default: 2
-------------------------------------------------------------------------------
Supported controls:
- by V4L: Contrast, Brightness, Color, Hue
- by driver options: frame rate, lighting conditions, video format,
- default picture settings, sharpness.
+ default picture settings, sharpness.
SUPPORTED CAMERAS:
init_model2_yb Integer 0..255 [0xa0] init_model2_yb=200
debug You don't need this option unless you are a developer.
- If you are a developer then you will see in the code
- what values do what. 0=off.
+ If you are a developer then you will see in the code
+ what values do what. 0=off.
flags This is a bit mask, and you can combine any number of
- bits to produce what you want. Usually you don't want
- any of extra features this option provides:
-
- FLAGS_RETRY_VIDIOCSYNC 1 This bit allows to retry failed
- VIDIOCSYNC ioctls without failing.
- Will work with xawtv, will not
- with xrealproducer. Default is
- not set.
- FLAGS_MONOCHROME 2 Activates monochrome (b/w) mode.
- FLAGS_DISPLAY_HINTS 4 Shows colored pixels which have
- magic meaning to developers.
- FLAGS_OVERLAY_STATS 8 Shows tiny numbers on screen,
- useful only for debugging.
- FLAGS_FORCE_TESTPATTERN 16 Shows blue screen with numbers.
- FLAGS_SEPARATE_FRAMES 32 Shows each frame separately, as
- it was received from the camera.
- Default (not set) is to mix the
- preceding frame in to compensate
- for occasional loss of Isoc data
- on high frame rates.
- FLAGS_CLEAN_FRAMES 64 Forces "cleanup" of each frame
- prior to use; relevant only if
- FLAGS_SEPARATE_FRAMES is set.
- Default is not to clean frames,
- this is a little faster but may
- produce flicker if frame rate is
- too high and Isoc data gets lost.
- FLAGS_NO_DECODING 128 This flag turns the video stream
- decoder off, and dumps the raw
- Isoc data from the camera into
- the reading process. Useful to
- developers, but not to users.
+ bits to produce what you want. Usually you don't want
+ any of extra features this option provides:
+
+ FLAGS_RETRY_VIDIOCSYNC 1 This bit allows to retry failed
+ VIDIOCSYNC ioctls without failing.
+ Will work with xawtv, will not
+ with xrealproducer. Default is
+ not set.
+ FLAGS_MONOCHROME 2 Activates monochrome (b/w) mode.
+ FLAGS_DISPLAY_HINTS 4 Shows colored pixels which have
+ magic meaning to developers.
+ FLAGS_OVERLAY_STATS 8 Shows tiny numbers on screen,
+ useful only for debugging.
+ FLAGS_FORCE_TESTPATTERN 16 Shows blue screen with numbers.
+ FLAGS_SEPARATE_FRAMES 32 Shows each frame separately, as
+ it was received from the camera.
+ Default (not set) is to mix the
+ preceding frame in to compensate
+ for occasional loss of Isoc data
+ on high frame rates.
+ FLAGS_CLEAN_FRAMES 64 Forces "cleanup" of each frame
+ prior to use; relevant only if
+ FLAGS_SEPARATE_FRAMES is set.
+ Default is not to clean frames,
+ this is a little faster but may
+ produce flicker if frame rate is
+ too high and Isoc data gets lost.
+ FLAGS_NO_DECODING 128 This flag turns the video stream
+ decoder off, and dumps the raw
+ Isoc data from the camera into
+ the reading process. Useful to
+ developers, but not to users.
framerate This setting controls frame rate of the camera. This is
- an approximate setting (in terms of "worst" ... "best")
- because camera changes frame rate depending on amount
- of light available. Setting 0 is slowest, 6 is fastest.
- Beware - fast settings are very demanding and may not
- work well with all video sizes. Be conservative.
+ an approximate setting (in terms of "worst" ... "best")
+ because camera changes frame rate depending on amount
+ of light available. Setting 0 is slowest, 6 is fastest.
+ Beware - fast settings are very demanding and may not
+ work well with all video sizes. Be conservative.
hue_correction This highly optional setting allows to adjust the
- hue of the image in a way slightly different from
- what usual "hue" control does. Both controls affect
- YUV colorspace: regular "hue" control adjusts only
- U component, and this "hue_correction" option similarly
- adjusts only V component. However usually it is enough
- to tweak only U or V to compensate for colored light or
- color temperature; this option simply allows more
- complicated correction when and if it is necessary.
+ hue of the image in a way slightly different from
+ what usual "hue" control does. Both controls affect
+ YUV colorspace: regular "hue" control adjusts only
+ U component, and this "hue_correction" option similarly
+ adjusts only V component. However usually it is enough
+ to tweak only U or V to compensate for colored light or
+ color temperature; this option simply allows more
+ complicated correction when and if it is necessary.
init_brightness These settings specify _initial_ values which will be
init_contrast used to set up the camera. If your V4L application has
init_color its own controls to adjust the picture then these
init_hue controls will be used too. These options allow you to
- preconfigure the camera when it gets connected, before
- any V4L application connects to it. Good for webcams.
+ preconfigure the camera when it gets connected, before
+ any V4L application connects to it. Good for webcams.
init_model2_rg These initial settings alter color balance of the
init_model2_rg2 camera on hardware level. All four settings may be used
init_model2_yb settings only apply to Model 2 cameras.
lighting This option selects one of three hardware-defined
- photosensitivity settings of the camera. 0=bright light,
- 1=Medium (default), 2=Low light. This setting affects
- frame rate: the dimmer the lighting the lower the frame
- rate (because longer exposition time is needed). The
- Model 2 cameras allow values more than 2 for this option,
- thus enabling extremely high sensitivity at cost of frame
- rate, color saturation and imaging sensor noise.
+ photosensitivity settings of the camera. 0=bright light,
+ 1=Medium (default), 2=Low light. This setting affects
+ frame rate: the dimmer the lighting the lower the frame
+ rate (because longer exposition time is needed). The
+ Model 2 cameras allow values more than 2 for this option,
+ thus enabling extremely high sensitivity at cost of frame
+ rate, color saturation and imaging sensor noise.
sharpness This option controls smoothing (noise reduction)
- made by camera. Setting 0 is most smooth, setting 6
- is most sharp. Be aware that CMOS sensor used in the
- camera is pretty noisy, so if you choose 6 you will
- be greeted with "snowy" image. Default is 4. Model 2
- cameras do not support this feature.
+ made by camera. Setting 0 is most smooth, setting 6
+ is most sharp. Be aware that CMOS sensor used in the
+ camera is pretty noisy, so if you choose 6 you will
+ be greeted with "snowy" image. Default is 4. Model 2
+ cameras do not support this feature.
size This setting chooses one of several image sizes that are
- supported by this driver. Cameras may support more, but
- it's difficult to reverse-engineer all formats.
- Following video sizes are supported:
-
- size=0 128x96 (Model 1 only)
- size=1 160x120
- size=2 176x144
- size=3 320x240 (Model 2 only)
- size=4 352x240 (Model 2 only)
- size=5 352x288
- size=6 640x480 (Model 3 only)
-
- The 352x288 is the native size of the Model 1 sensor
- array, so it's the best resolution the camera can
- yield. The best resolution of Model 2 is 176x144, and
- larger images are produced by stretching the bitmap.
- Model 3 has sensor with 640x480 grid, and it works too,
- but the frame rate will be exceptionally low (1-2 FPS);
- it may be still OK for some applications, like security.
- Choose the image size you need. The smaller image can
- support faster frame rate. Default is 352x288.
+ supported by this driver. Cameras may support more, but
+ it's difficult to reverse-engineer all formats.
+ Following video sizes are supported:
+
+ size=0 128x96 (Model 1 only)
+ size=1 160x120
+ size=2 176x144
+ size=3 320x240 (Model 2 only)
+ size=4 352x240 (Model 2 only)
+ size=5 352x288
+ size=6 640x480 (Model 3 only)
+
+ The 352x288 is the native size of the Model 1 sensor
+ array, so it's the best resolution the camera can
+ yield. The best resolution of Model 2 is 176x144, and
+ larger images are produced by stretching the bitmap.
+ Model 3 has sensor with 640x480 grid, and it works too,
+ but the frame rate will be exceptionally low (1-2 FPS);
+ it may be still OK for some applications, like security.
+ Choose the image size you need. The smaller image can
+ support faster frame rate. Default is 352x288.
For more information and the Troubleshooting FAQ visit this URL:
- http://www.linux-usb.org/ibmcam/
+ http://www.linux-usb.org/ibmcam/
WHAT NEEDS TO BE DONE:
TYPE: integer (Boolean)
DEFAULT: 1
DESC: Brightness is normally under automatic control and can't be set
- manually by the video app. Set to 0 for manual control.
+ manually by the video app. Set to 0 for manual control.
NAME: autogain
TYPE: integer (Boolean)
TYPE: integer (0-6)
DEFAULT: 3
DESC: Sets the threshold for printing debug messages. The higher the value,
- the more is printed. The levels are cumulative, and are as follows:
- 0=no debug messages
- 1=init/detection/unload and other significant messages
- 2=some warning messages
- 3=config/control function calls
- 4=most function calls and data parsing messages
- 5=highly repetitive mesgs
+ the more is printed. The levels are cumulative, and are as follows:
+ 0=no debug messages
+ 1=init/detection/unload and other significant messages
+ 2=some warning messages
+ 3=config/control function calls
+ 4=most function calls and data parsing messages
+ 5=highly repetitive mesgs
NAME: snapshot
TYPE: integer (Boolean)
TYPE: integer (1-4 for OV511, 1-31 for OV511+)
DEFAULT: 1
DESC: Number of cameras allowed to stream simultaneously on a single bus.
- Values higher than 1 reduce the data rate of each camera, allowing two
- or more to be used at once. If you have a complicated setup involving
- both OV511 and OV511+ cameras, trial-and-error may be necessary for
- finding the optimum setting.
+ Values higher than 1 reduce the data rate of each camera, allowing two
+ or more to be used at once. If you have a complicated setup involving
+ both OV511 and OV511+ cameras, trial-and-error may be necessary for
+ finding the optimum setting.
NAME: compress
TYPE: integer (Boolean)
DEFAULT: 0
DESC: Set this to 1 to turn on the camera's compression engine. This can
- potentially increase the frame rate at the expense of quality, if you
- have a fast CPU. You must load the proper compression module for your
- camera before starting your application (ov511_decomp or ov518_decomp).
+ potentially increase the frame rate at the expense of quality, if you
+ have a fast CPU. You must load the proper compression module for your
+ camera before starting your application (ov511_decomp or ov518_decomp).
NAME: testpat
TYPE: integer (Boolean)
DEFAULT: 0
DESC: This configures the camera's sensor to transmit a colored test-pattern
- instead of an image. This does not work correctly yet.
+ instead of an image. This does not work correctly yet.
NAME: dumppix
TYPE: integer (0-2)
- SN9C10x PC Camera Controllers
- Driver for Linux
- =============================
+ SN9C10x PC Camera Controllers
+ Driver for Linux
+ =============================
- - Documentation -
+ - Documentation -
Index
Type: short array (min = 0, max = 64)
Syntax: <-1|n[,...]>
Description: Specify V4L2 minor mode number:
- -1 = use next available
- n = use minor number n
- You can specify up to 64 cameras this way.
- For example:
- video_nr=-1,2,-1 would assign minor number 2 to the second
- recognized camera and use auto for the first one and for every
- other camera.
+ -1 = use next available
+ n = use minor number n
+ You can specify up to 64 cameras this way.
+ For example:
+ video_nr=-1,2,-1 would assign minor number 2 to the second
+ recognized camera and use auto for the first one and for every
+ other camera.
Default: -1
-------------------------------------------------------------------------------
Name: force_munmap
Type: bool array (min = 0, max = 64)
Syntax: <0|1[,...]>
Description: Force the application to unmap previously mapped buffer memory
- before calling any VIDIOC_S_CROP or VIDIOC_S_FMT ioctl's. Not
- all the applications support this feature. This parameter is
- specific for each detected camera.
- 0 = do not force memory unmapping
- 1 = force memory unmapping (save memory)
+ before calling any VIDIOC_S_CROP or VIDIOC_S_FMT ioctl's. Not
+ all the applications support this feature. This parameter is
+ specific for each detected camera.
+ 0 = do not force memory unmapping
+ 1 = force memory unmapping (save memory)
Default: 0
-------------------------------------------------------------------------------
Name: frame_timeout
Type: uint array (min = 0, max = 64)
Syntax: <n[,...]>
Description: Timeout for a video frame in seconds. This parameter is
- specific for each detected camera. This parameter can be
- changed at runtime thanks to the /sys filesystem interface.
+ specific for each detected camera. This parameter can be
+ changed at runtime thanks to the /sys filesystem interface.
Default: 2
-------------------------------------------------------------------------------
Name: debug
Type: ushort
Syntax: <n>
Description: Debugging information level, from 0 to 3:
- 0 = none (use carefully)
- 1 = critical errors
- 2 = significant informations
- 3 = more verbose messages
- Level 3 is useful for testing only, when only one device
- is used. It also shows some more informations about the
- hardware being detected. This parameter can be changed at
- runtime thanks to the /sys filesystem interface.
+ 0 = none (use carefully)
+ 1 = critical errors
+ 2 = significant informations
+ 3 = more verbose messages
+ Level 3 is useful for testing only, when only one device
+ is used. It also shows some more informations about the
+ hardware being detected. This parameter can be changed at
+ runtime thanks to the /sys filesystem interface.
Default: 2
-------------------------------------------------------------------------------
0x04 0xC4 Frame synchronisation pattern.
0x05 0x96 Frame synchronisation pattern.
0x06 0xXX Unknown meaning. The exact value depends on the chip;
- possible values are 0x00, 0x01 and 0x20.
+ possible values are 0x00, 0x01 and 0x20.
0x07 0xXX Variable value, whose bits are ff00uzzc, where ff is a
- frame counter, u is unknown, zz is a size indicator
- (00 = VGA, 01 = SIF, 10 = QSIF) and c stands for
- "compression enabled" (1 = yes, 0 = no).
+ frame counter, u is unknown, zz is a size indicator
+ (00 = VGA, 01 = SIF, 10 = QSIF) and c stands for
+ "compression enabled" (1 = yes, 0 = no).
0x08 0xXX Brightness sum inside Auto-Exposure area (low-byte).
0x09 0xXX Brightness sum inside Auto-Exposure area (high-byte).
- For a pure white image, this number will be equal to 500
- times the area of the specified AE area. For images
- that are not pure white, the value scales down according
- to relative whiteness.
+ For a pure white image, this number will be equal to 500
+ times the area of the specified AE area. For images
+ that are not pure white, the value scales down according
+ to relative whiteness.
0x0A 0xXX Brightness sum outside Auto-Exposure area (low-byte).
0x0B 0xXX Brightness sum outside Auto-Exposure area (high-byte).
- For a pure white image, this number will be equal to 125
- times the area outside of the specified AE area. For
- images that are not pure white, the value scales down
- according to relative whiteness.
- according to relative whiteness.
+ For a pure white image, this number will be equal to 125
+ times the area outside of the specified AE area. For
+ images that are not pure white, the value scales down
+ according to relative whiteness.
+ according to relative whiteness.
The following bytes are used by the SN9C103 bridge only:
- W996[87]CF JPEG USB Dual Mode Camera Chip
- Driver for Linux 2.6 (basic version)
- =========================================
+ W996[87]CF JPEG USB Dual Mode Camera Chip
+ Driver for Linux 2.6 (basic version)
+ =========================================
- - Documentation -
+ - Documentation -
Index
Type: bool
Syntax: <0|1>
Description: Automatic 'ovcamchip' module loading: 0 disabled, 1 enabled.
- If enabled, 'insmod' searches for the required 'ovcamchip'
- module in the system, according to its configuration, and
- loads that module automatically. This action is performed as
- once soon as the 'w9968cf' module is loaded into memory.
+ If enabled, 'insmod' searches for the required 'ovcamchip'
+ module in the system, according to its configuration, and
+ loads that module automatically. This action is performed as
+ once soon as the 'w9968cf' module is loaded into memory.
Default: 1
Note: The kernel must be compiled with the CONFIG_KMOD option
- enabled for the 'ovcamchip' module to be loaded and for
- this parameter to be present.
+ enabled for the 'ovcamchip' module to be loaded and for
+ this parameter to be present.
-------------------------------------------------------------------------------
Name: simcams
Type: int
Syntax: <n>
Description: Number of cameras allowed to stream simultaneously.
- n may vary from 0 to 32.
+ n may vary from 0 to 32.
Default: 32
-------------------------------------------------------------------------------
Name: video_nr
Type: int array (min = 0, max = 32)
Syntax: <-1|n[,...]>
Description: Specify V4L minor mode number.
- -1 = use next available
- n = use minor number n
- You can specify up to 32 cameras this way.
- For example:
- video_nr=-1,2,-1 would assign minor number 2 to the second
- recognized camera and use auto for the first one and for every
- other camera.
+ -1 = use next available
+ n = use minor number n
+ You can specify up to 32 cameras this way.
+ For example:
+ video_nr=-1,2,-1 would assign minor number 2 to the second
+ recognized camera and use auto for the first one and for every
+ other camera.
Default: -1
-------------------------------------------------------------------------------
Name: packet_size
Type: int array (min = 0, max = 32)
Syntax: <n[,...]>
Description: Specify the maximum data payload size in bytes for alternate
- settings, for each device. n is scaled between 63 and 1023.
+ settings, for each device. n is scaled between 63 and 1023.
Default: 1023
-------------------------------------------------------------------------------
Name: max_buffers
Type: int array (min = 0, max = 32)
Syntax: <n[,...]>
Description: For advanced users.
- Specify the maximum number of video frame buffers to allocate
- for each device, from 2 to 32.
+ Specify the maximum number of video frame buffers to allocate
+ for each device, from 2 to 32.
Default: 2
-------------------------------------------------------------------------------
Name: double_buffer
Type: bool array (min = 0, max = 32)
Syntax: <0|1[,...]>
Description: Hardware double buffering: 0 disabled, 1 enabled.
- It should be enabled if you want smooth video output: if you
- obtain out of sync. video, disable it, or try to
- decrease the 'clockdiv' module parameter value.
+ It should be enabled if you want smooth video output: if you
+ obtain out of sync. video, disable it, or try to
+ decrease the 'clockdiv' module parameter value.
Default: 1 for every device.
-------------------------------------------------------------------------------
Name: clamping
Type: int array (min = 0, max = 32)
Syntax: <0|1|2[,...]>
Description: Video filter type.
- 0 none, 1 (1-2-1) 3-tap filter, 2 (2-3-6-3-2) 5-tap filter.
- The filter is used to reduce noise and aliasing artifacts
- produced by the CCD or CMOS image sensor.
+ 0 none, 1 (1-2-1) 3-tap filter, 2 (2-3-6-3-2) 5-tap filter.
+ The filter is used to reduce noise and aliasing artifacts
+ produced by the CCD or CMOS image sensor.
Default: 0 for every device.
-------------------------------------------------------------------------------
Name: largeview
Type: bool array (min = 0, max = 32)
Syntax: <0|1[,...]>
Description: Software scaling (for non-compressed video only):
- 0 disabled, 1 enabled.
- Disable it if you have a slow CPU or you don't have enough
- memory.
+ 0 disabled, 1 enabled.
+ Disable it if you have a slow CPU or you don't have enough
+ memory.
Default: 0 for every device.
Note: If 'w9968cf-vpp' is not present, this parameter is set to 0.
-------------------------------------------------------------------------------
Type: int array (min = 0, max = 32)
Syntax: <0|1|2[,...]>
Description: Software video decompression:
- 0 = disables decompression
- (doesn't allow formats needing decompression).
- 1 = forces decompression
- (allows formats needing decompression only).
- 2 = allows any permitted formats.
- Formats supporting (de)compressed video are YUV422P and
- YUV420P/YUV420 in any resolutions where width and height are
- multiples of 16.
+ 0 = disables decompression
+ (doesn't allow formats needing decompression).
+ 1 = forces decompression
+ (allows formats needing decompression only).
+ 2 = allows any permitted formats.
+ Formats supporting (de)compressed video are YUV422P and
+ YUV420P/YUV420 in any resolutions where width and height are
+ multiples of 16.
Default: 2 for every device.
Note: If 'w9968cf-vpp' is not present, forcing decompression is not
- allowed; in this case this parameter is set to 2.
+ allowed; in this case this parameter is set to 2.
-------------------------------------------------------------------------------
Name: force_palette
Type: int array (min = 0, max = 32)
Syntax: <0|9|10|13|15|8|7|1|6|3|4|5[,...]>
Description: Force picture palette.
- In order:
- 0 = Off - allows any of the following formats:
- 9 = UYVY 16 bpp - Original video, compression disabled
- 10 = YUV420 12 bpp - Original video, compression enabled
- 13 = YUV422P 16 bpp - Original video, compression enabled
- 15 = YUV420P 12 bpp - Original video, compression enabled
- 8 = YUVY 16 bpp - Software conversion from UYVY
- 7 = YUV422 16 bpp - Software conversion from UYVY
- 1 = GREY 8 bpp - Software conversion from UYVY
- 6 = RGB555 16 bpp - Software conversion from UYVY
- 3 = RGB565 16 bpp - Software conversion from UYVY
- 4 = RGB24 24 bpp - Software conversion from UYVY
- 5 = RGB32 32 bpp - Software conversion from UYVY
- When not 0, this parameter will override 'decompression'.
+ In order:
+ 0 = Off - allows any of the following formats:
+ 9 = UYVY 16 bpp - Original video, compression disabled
+ 10 = YUV420 12 bpp - Original video, compression enabled
+ 13 = YUV422P 16 bpp - Original video, compression enabled
+ 15 = YUV420P 12 bpp - Original video, compression enabled
+ 8 = YUVY 16 bpp - Software conversion from UYVY
+ 7 = YUV422 16 bpp - Software conversion from UYVY
+ 1 = GREY 8 bpp - Software conversion from UYVY
+ 6 = RGB555 16 bpp - Software conversion from UYVY
+ 3 = RGB565 16 bpp - Software conversion from UYVY
+ 4 = RGB24 24 bpp - Software conversion from UYVY
+ 5 = RGB32 32 bpp - Software conversion from UYVY
+ When not 0, this parameter will override 'decompression'.
Default: 0 for every device. Initial palette is 9 (UYVY).
Note: If 'w9968cf-vpp' is not present, this parameter is set to 9.
-------------------------------------------------------------------------------
Type: bool array (min = 0, max = 32)
Syntax: <0|1[,...]>
Description: Read RGB video data instead of BGR:
- 1 = use RGB component ordering.
- 0 = use BGR component ordering.
- This parameter has effect when using RGBX palettes only.
+ 1 = use RGB component ordering.
+ 0 = use BGR component ordering.
+ This parameter has effect when using RGBX palettes only.
Default: 0 for every device.
-------------------------------------------------------------------------------
Name: autobright
Type: bool array (min = 0, max = 32)
Syntax: <0|1[,...]>
Description: Image sensor automatically changes brightness:
- 0 = no, 1 = yes
+ 0 = no, 1 = yes
Default: 0 for every device.
-------------------------------------------------------------------------------
Name: autoexp
Type: bool array (min = 0, max = 32)
Syntax: <0|1[,...]>
Description: Image sensor automatically changes exposure:
- 0 = no, 1 = yes
+ 0 = no, 1 = yes
Default: 1 for every device.
-------------------------------------------------------------------------------
Name: lightfreq
Type: int array (min = 0, max = 32)
Syntax: <50|60[,...]>
Description: Light frequency in Hz:
- 50 for European and Asian lighting, 60 for American lighting.
+ 50 for European and Asian lighting, 60 for American lighting.
Default: 50 for every device.
-------------------------------------------------------------------------------
Name: bandingfilter
Type: bool array (min = 0, max = 32)
Syntax: <0|1[,...]>
Description: Banding filter to reduce effects of fluorescent
- lighting:
- 0 disabled, 1 enabled.
- This filter tries to reduce the pattern of horizontal
- light/dark bands caused by some (usually fluorescent) lighting.
+ lighting:
+ 0 disabled, 1 enabled.
+ This filter tries to reduce the pattern of horizontal
+ light/dark bands caused by some (usually fluorescent) lighting.
Default: 0 for every device.
-------------------------------------------------------------------------------
Name: clockdiv
Type: int array (min = 0, max = 32)
Syntax: <-1|n[,...]>
Description: Force pixel clock divisor to a specific value (for experts):
- n may vary from 0 to 127.
- -1 for automatic value.
- See also the 'double_buffer' module parameter.
+ n may vary from 0 to 127.
+ -1 for automatic value.
+ See also the 'double_buffer' module parameter.
Default: -1 for every device.
-------------------------------------------------------------------------------
Name: backlight
Type: bool array (min = 0, max = 32)
Syntax: <0|1[,...]>
Description: Objects are lit from behind:
- 0 = no, 1 = yes
+ 0 = no, 1 = yes
Default: 0 for every device.
-------------------------------------------------------------------------------
Name: mirror
Type: bool array (min = 0, max = 32)
Syntax: <0|1[,...]>
Description: Reverse image horizontally:
- 0 = no, 1 = yes
+ 0 = no, 1 = yes
Default: 0 for every device.
-------------------------------------------------------------------------------
Name: monochrome
Type: bool array (min = 0, max = 32)
Syntax: <0|1[,...]>
Description: The image sensor is monochrome:
- 0 = no, 1 = yes
+ 0 = no, 1 = yes
Default: 0 for every device.
-------------------------------------------------------------------------------
Name: brightness
Type: long array (min = 0, max = 32)
Syntax: <n[,...]>
Description: Set picture brightness (0-65535).
- This parameter has no effect if 'autobright' is enabled.
+ This parameter has no effect if 'autobright' is enabled.
Default: 31000 for every device.
-------------------------------------------------------------------------------
Name: hue
Type: int
Syntax: <n>
Description: Debugging information level, from 0 to 6:
- 0 = none (use carefully)
- 1 = critical errors
- 2 = significant informations
- 3 = configuration or general messages
- 4 = warnings
- 5 = called functions
- 6 = function internals
- Level 5 and 6 are useful for testing only, when only one
- device is used.
+ 0 = none (use carefully)
+ 1 = critical errors
+ 2 = significant informations
+ 3 = configuration or general messages
+ 4 = warnings
+ 5 = called functions
+ 6 = function internals
+ Level 5 and 6 are useful for testing only, when only one
+ device is used.
Default: 2
-------------------------------------------------------------------------------
Name: specific_debug
Type: bool
Syntax: <0|1>
Description: Enable or disable specific debugging messages:
- 0 = print messages concerning every level <= 'debug' level.
- 1 = print messages concerning the level indicated by 'debug'.
+ 0 = print messages concerning every level <= 'debug' level.
+ 1 = print messages concerning the level indicated by 'debug'.
Default: 0
-------------------------------------------------------------------------------
projects / linux-2.6 / commitdiff