convert philips.txt to ReST and add to media docs

	meye

	omap3isp

	omap4_camera

	philips

	pvrusb2

	pxa_camera

	radiotrack

Philips webcams (pwc driver)

============================

This file contains some additional information for the Philips and OEM webcams.

E-mail: webcam@smcc.demon.nl                        Last updated: 2004-01-19

Site: http://www.smcc.demon.nl/webcam/

As of this moment, the following cameras are supported:

 * Philips PCA645

 * Philips PCA646

 * Philips PCVC675

compression (only useful with the plugin)

   With this option you can control the compression factor that the camera

   uses to squeeze the image through the USB bus. You can set the

   parameter between 0 and 3:

   parameter between 0 and 3::

     0 = prefer uncompressed images; if the requested mode is not available

	 in an uncompressed format, the driver will silently switch to low

	 compression.

leds

   This settings takes 2 integers, that define the on/off time for the LED

   (in milliseconds). One of the interesting things that you can do with

   this is let the LED blink while the camera is in use. This:

   this is let the LED blink while the camera is in use. This::

     leds=500,500

   will blink the LED once every second. But with:

   will blink the LED once every second. But with::

     leds=0,0

   A camera is specified by its type (the number from the camera model,

   like PCA645, PCVC750VC, etc) and optionally the serial number (visible

   in /proc/bus/usb/devices). A hint consists of a string with the following

   format:

   format::

      [type[.serialnumber]:]node

   would be rather pointless). The serialnumber is separated from the type

   by a '.'; the node number by a ':'.

   This somewhat cryptic syntax is best explained by a few examples:

   This somewhat cryptic syntax is best explained by a few examples::

     dev_hint=3,5              The first detected cam gets assigned

			       /dev/video3, the second /dev/video5. Any

				through /dev/video6.

   Some points worth knowing:

   - Serialnumbers are case sensitive and must be written full, including

     leading zeroes (it's treated as a string).

   - If a device node is already occupied, registration will fail and

   If you want to trace something, look up the bit value(s) in the table

   below, add the values together and supply that to the trace variable.

   ====== ======= ================================================ =======

   Value  Value   Description					   Default

   (dec)  (hex)

   ====== ======= ================================================ =======

       1    0x1   Module initialization; this will log messages       On

		  while loading and unloading the module

      64   0x40   Show viewport and image sizes                       Off

     128   0x80   PWCX debugging                                      Off

   ====== ======= ================================================ =======

   For example, to trace the open() & read() functions, sum 8 + 4 = 12,

   so you would supply trace=12 during insmod or modprobe. If

Example:

Example::

     # modprobe pwc size=cif fps=15 power_save=1