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convert philips.txt to ReST and add to media docs
The philips.txt file were at the wrong place: it should be, instead, at Documentation/media. Move and convert it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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2 changed files with 16 additions and 6 deletions
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@ -45,6 +45,7 @@ For more details see the file COPYING in the source distribution of Linux.
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meye
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omap3isp
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omap4_camera
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philips
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pvrusb2
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pxa_camera
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radiotrack
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@ -1,8 +1,12 @@
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Philips webcams (pwc driver)
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============================
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This file contains some additional information for the Philips and OEM webcams.
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E-mail: webcam@smcc.demon.nl Last updated: 2004-01-19
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Site: http://www.smcc.demon.nl/webcam/
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As of this moment, the following cameras are supported:
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* Philips PCA645
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* Philips PCA646
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* Philips PCVC675
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@ -89,7 +93,8 @@ power_save
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compression (only useful with the plugin)
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With this option you can control the compression factor that the camera
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uses to squeeze the image through the USB bus. You can set the
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parameter between 0 and 3:
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parameter between 0 and 3::
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0 = prefer uncompressed images; if the requested mode is not available
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in an uncompressed format, the driver will silently switch to low
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compression.
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@ -109,11 +114,11 @@ compression (only useful with the plugin)
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leds
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This settings takes 2 integers, that define the on/off time for the LED
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(in milliseconds). One of the interesting things that you can do with
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this is let the LED blink while the camera is in use. This:
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this is let the LED blink while the camera is in use. This::
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leds=500,500
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will blink the LED once every second. But with:
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will blink the LED once every second. But with::
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leds=0,0
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@ -141,7 +146,7 @@ dev_hint
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A camera is specified by its type (the number from the camera model,
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like PCA645, PCVC750VC, etc) and optionally the serial number (visible
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in /proc/bus/usb/devices). A hint consists of a string with the following
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format:
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format::
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[type[.serialnumber]:]node
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@ -150,7 +155,7 @@ dev_hint
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would be rather pointless). The serialnumber is separated from the type
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by a '.'; the node number by a ':'.
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This somewhat cryptic syntax is best explained by a few examples:
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This somewhat cryptic syntax is best explained by a few examples::
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dev_hint=3,5 The first detected cam gets assigned
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/dev/video3, the second /dev/video5. Any
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@ -170,6 +175,7 @@ dev_hint
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through /dev/video6.
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Some points worth knowing:
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- Serialnumbers are case sensitive and must be written full, including
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leading zeroes (it's treated as a string).
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- If a device node is already occupied, registration will fail and
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@ -189,8 +195,10 @@ trace
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If you want to trace something, look up the bit value(s) in the table
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below, add the values together and supply that to the trace variable.
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====== ======= ================================================ =======
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Value Value Description Default
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(dec) (hex)
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====== ======= ================================================ =======
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1 0x1 Module initialization; this will log messages On
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while loading and unloading the module
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@ -208,6 +216,7 @@ trace
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64 0x40 Show viewport and image sizes Off
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128 0x80 PWCX debugging Off
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====== ======= ================================================ =======
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For example, to trace the open() & read() functions, sum 8 + 4 = 12,
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so you would supply trace=12 during insmod or modprobe. If
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@ -216,7 +225,7 @@ trace
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Example:
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Example::
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# modprobe pwc size=cif fps=15 power_save=1
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