- 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
5. Supported devices
6. Module dependencies
7. Module loading
-8. Module paramaters
+8. Module parameters
9. Contact information
10. Credits
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-drm-fsl-dcu.git / blobdiff