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1 This file contains some additional information for the Philips and OEM webcams.
32 a lot of extra information, a FAQ, and the binary plugin 'PWCX'. This plugin
33 contains decompression routines that allow you to use higher image sizes and
36 under a NDA, and may therefore not be distributed as source; however, its use
44 camera; some programs depend on a particular image-size or -format and
50    320x240, 352x288 and 640x480 (of course, only for those cameras that
61    reasonable. You can set it between 2 and 5.
64    This is an integer between 1 and 10. It will tell the module the number of
65    buffers to reserve for mmap(), VIDIOCCGMBUF, VIDIOCMCAPTURE and friends.
83    the cam on close() and re-activate on open(). This will save power and
84    turn off the LED. Not all cameras support this though (the 645 and 646
85    don't have power saving at all), and some models don't work either (they
92    parameter between 0 and 3:
105    The compression parameter does not apply to the 645 and 646 cameras
106    and OEM models derived from those (only a few). Most cams honour this
122    By default the camera's LED is on solid while in use, and turned off
126    750) and OEMs. For other cameras this command is silently ignored, and
136    and the phase of the moon (i.e. it can be random). With this option you
142    like PCA645, PCVC750VC, etc) and optionally the serial number (visible
148    The square brackets mean that both the type and the serialnumber are
161 			       and a PCVC680 /dev/video2.
173    - Serialnumbers are case sensitive and must be written full, including
175    - If a device node is already occupied, registration will fail and
190    below, add the values together and supply that to the trace variable.
195 		  while loading and unloading the module
197        2    0x2   probe() and disconnect() traces                     On
199        4    0x4   Trace open() and close() calls                      Off
201        8    0x8   read(), mmap() and associated ioctl() calls         Off
205       32   0x20   Showing underflow, overflow and Dumping frame       On
208       64   0x40   Show viewport and image sizes                       Off
214    you want to turn the initialization and probing tracing off, set trace=0.
223 The fbufs, mbufs and trace parameters are global and apply to all connected
226 size and fps only specify defaults when you open() the device; this is to